When Marceline opened her eyes, she found herself in a strange place. Some kind of transient realm, both familiar and unfamiliar. She was still in her bed, in her room, in (presumably) her house, but something about it was decidedly off. A thick darkness shrouded most of her room, limiting her sight to only the space near her bed. The air was uncomfortably warm, and… moist?
"Ughh… B-Bonnie…?" Marceline mumbled, probing the other side of her bed with a limp arm. There was nothing there. Now she was starting to get anxious. As she blinked repeatedly and looked around the room, she watched the shadows swirl and creep towards the foot of the bed. The darkness twisted and compacted itself into a vaguely humanoid shape, looming over her. She could feel her heart racing, but even though she had the will to struggle, she found her body almost completely paralyzed. What happened next merely made it even more rigid.
WHAP!
Like a slab of meat in a butcher's shop, a huge, impossibly thick mass was suddenly slapped onto her torso. Even though it was shadowy and somewhat amorphous, its identity was clear enough to Marceline. It was a cock, a penis, a schlong. Whatever nasty word you wanted to use to describe it. A pungent smell wafted around it, and she could feel hot, sticky fluids seeping from its tip and pouring onto her pert breasts.
"W-What?!" Marceline cried. Her heart was pounding, now, presumably out of fear. At least, she hoped it was just out of fear. Though she already lacked the ability to struggle, Marceline felt a pair of firm hands grab her arms, pressing her against the bed. "Wait, no! Stop!" she cried, watching as the shadowy figure shifted its weight, pulling its behemoth sex organ off of her chest and moving it towards her pelvis. As the tip began to prod her exposed nether regions, she started to scream.
"Don't do it, please! PLEASE! I have a girlfriend!" Marceline protested. The phallus probed harder and harder, splitting her sensitive pussy lips apart more and more. She whimpered, anticipating what was about to happen. "N-No, don't…"
And then, it did happen.
"NNGH!"
Marceline bit her lip as the entity's entire cock was shoved full-force into her pussy. In an instant, her body was impaled on a sex organ far too large for it, turning her vagina into little more than an ultra-tight condom for the beast. It pulled out, slowly, and then rammed its cock back in just as hard. Again, and again, and again. The entity's thrusts quickly picked up speed, reaching a steady jackhammering motion that tenderized her sensitive privates. The pain of such vigorous sex, however, soon faded, giving way to a pleasure she was completely unprepared for. Every thrust performed by the monster sent shuddering blasts of ecstasy through her body, the likes of which she had never felt during even the steamiest lesbian sex sessions with her beloved Bonnibel.
"Grr, fuck! I-It's too fucking big!" Marceline grunted, panting as the massive cock pounded her insides over and over again. Her vampiric nature gave her body more than enough resilience to weather such rough treatment, but that didn't mean that it felt any less intense for her. At the apex of each thrust, it felt like the cock was tunneling all the way up into her chest, creating an intensely-pleasurable burning sensation.
"Nnngh, w-what the fuck is happening to my tits…?" Marceline stammered, taking glances at her breasts in-between her harsh gasps and moans. As she stared at her soft, pale mounds, she saw them begin to obscure more and more of her vision, growing larger and fuller with each lewd bounce. "My tits! My tits are getting bigger!" Marceline cried, watching her once small and perky breasts blow up into a pair of wobbling, round slut udders. As they grew bigger, they also grew more sensitive, and the constant bouncing they were doing soon became too much to handle. As her breasts surpassed the size of her head, the pleasure coursing through her body reached its absolute limit. She screamed as her brain was battered by the most explosive orgasm of her entire 1000 year life. Her tits suddenly exploded in size, inflating into a pair of monstrous gray orbs that bounced even more erotically, completely blocking her view of the figure that was fucking her.
"Grrr, fuck! Fuck yes!" Marceline cried, letting her pussy clamp down on the cock as it continued railing her. Her worries, her confusion, her thoughts of Bonnibel, they were all washed away by the pleasure that was flooding her brain. Pure, feral desire took their place, her mind overtaken by an insatiable carnality. "Keep going! Make my tits fucking grow! OOH!" Marceline screamed with lust again as she felt the cock swell up inside of her, before releasing a surge of cum deep inside her womb. Marceline felt her belly swell along with her tits as she was filled with gallons of seed, a sensation that made her orgasm again, then yet again mere seconds later. The pleasure was utterly indescribable in its magnitude.
Shortly after its orgasm, the entity behind her summoned some invisible force and flipped Marceline onto her stomach, shoving her head into her now 4 foot wide bust. Seemingly unfazed by its sudden, intense cumshot, the entity continued to pound her pussy from behind, splattering thick wads of cum onto her bed with each pull and push. With her face now buried in her own massive rack, Marceline could only moan and whimper like a bitch in heat. Whatever was happening to her right now, she desperately wanted more of it.
"Ugggh, I'm so fucking full! Keep cumming inside me! Fill me up! Fill my tits up!" Marceline demanded, gritting her teeth as she felt the cock swell up and unload inside her again, also making her orgasm again. Both her belly and her breasts felt like they were about to burst, but she was oblivious to this. The urge to be bloated and swollen beyond belief with this being's cum overrode any logic her mind once had.
Pushing her hips against the thrusts of her ghostly partner, Marceline suddenly felt the same pleasurable burning from her tits flow back into her ass. Turning her head as much as she could, she saw her butt, once flat and bony, now fattening up into a plump, fuckable bubble ass. The sight of this, combined with the sensation, was enough to make her cum on the spot.
"Oh, fuck yes! Make my ass bigger, too! Make it HUGE!" Marceline cried, clapping her growing behind against the base of the entity's cock. Her thick, swelling ass flesh made its thrusts even more euphoric for her. The room was filled with a cacophony of wet, slapping noises and churning liquids, as Marceline's body started to become predominantly defined by her breasts, ass, and belly. Every single part of her was so full, so huge, and every single part felt so incredibly good. She just couldn't take it!
"I-I can't stop cumming… fuuuck…" Marceline moaned, unable to see anything besides her swollen, plump titflesh. Her head was drowning in her own curves as her mind drowned in ecstasy, another load being pumped into her belly every other moment. Through the wild sex sounds and constant orgasms, a single thought cemented itself in her brain.
"M-More!"
And she was filled with more cum. Her belly swelled, her tits bulged, her ass fattened…
"MORE!"
And she was filled with even more cum. Her belly bloated, her tits inflated, her ass widened…
"MORE! MOREMOREMOREMOREMORE!"
And what she got was more. More orgasms, more cum, more growth. An insatiable, utterly debased spiral of endless lust, growing bigger and louder and hotter until…
"GAH!"
Marceline sat up, her eyes blinking rapidly, clutching her pounding chest. She looked around, dazed and confused. It was her room, just as she knew it. No looming shadows, no pervasive darkness. Everything was as it should be. She looked down, and saw her figure as it usually was. Slender, fit, and perky. Nothing out of the ordinary there, either. Had it all just been a dream?
"Nnf… Marcy?" Marceline heard a soft voice from the other side of the bed. She turned to see her pink-skinned girlfriend sitting up in bed, rubbing her eyes. "What happened? Something wrong?" she asked, drawing closer to Marceline.
"Bonnie…" Marceline muttered to herself, cautiously reaching for the hand of her lover. After what she had just experienced, reality still seemed tenebrous to her. "I… it's nothing. Just a dumb bad dream, that's all."
"Aw, really?" Bonnibel said, wrapping her arms around Marceline's waist. "That sucks, babe. Here, this'll help…" Pulling Marceline's head towards hers, Bonnibel locked her into a deep kiss. Marceline reciprocated it almost instinctively, the bubblegum girl's lips tasting sweet and bringing her a welcome comfort. "Want me to get you anything?"
"No, I'm fine," Marceline said, pulling the sheets up and falling back into bed. "We still got that thing we're doing with Finn tomorrow, right?" Not wanting to think back on her dream, she changed the subject abruptly.
"Yeah, the hot springs," Bonnibel answered. "We could call it off, though, if you're not-"
"I'm fine, Bonnie, really," Marceline insisted, cutting her off. "I'll just try to doze off again. You should, too. It'd suck if we were both super tired, tomorrow."
After a few moments, Bonnibel nodded. "Okay, then." She gave Marceline another quick kiss on the cheek, and then rolled over onto her side of the bed. "Sweet dreams, Marcy. I love you…"
"Love you, too…" Marceline answered, passively. With her back turned to her girlfriend, Marceline could now focus on a much more pressing issue: her pussy was on fire. Even if everything else she experienced in the dream had been imaginary, the pleasure it had given had been anything but imaginary. Oddly, even after all those orgasms, she still felt incredibly on edge, as if she hadn't cum in weeks.
As soon as she knew Bonnibel was asleep again, Marceline let her hand creep down into her panties, stroking her sopping wet lady parts. She went as fast as she could, practically abusing her clit as she madly chased the pleasure high she had felt while dreaming. She buried her face in her pillow to stifle her moans, humping her own hand like crazy. And yet, it still wasn't enough. She went for at least half an hour, grinding away edge after excruciating edge, and she still couldn't cum. No amount of teasing or rubbing or humping could bring her to orgasm. It was then she realized that her pussy didn't just feel hot, or horny, or incredibly edged.
It felt empty, too.
Troubling dreams aside, Marceline found herself surprisingly well-rested by tomorrow morning. While it did linger, her memory of the dream grew more vague as she prepped for the day's activities with her girlfriend. A few days ago, while she was surveying the land around her kingdom, Bonnibel had discovered a small geothermal hot spring, tucked away inside a rocky gorge. The location seemed perfect for a relaxing day out, and the two of them had already made plans to visit the gorge. They had also invited Finn to come along with them, who had happily agreed, expecting at least a hint of adventure at the location, as well.
That morning, Bonnibel and Marceline gathered everything they needed for the trip. They packed snacks, drinks, towels, and their swimsuits, before setting off towards the gorge. It was an hour or so of walking until they reached it, but eventually, they closed in on the sound of whistling steam, emanating from a jagged crevice in the ground. The gorge was wide, but fairly shallow, and it didn't take long for them to descend down into it. The air was much hotter and more humid than on the surface. An earthy smell permeated through it as the geothermal vents and tubes belched steam into the air at regular intervals. Marceline couldn't help but notice that many of the vents were somewhat phallic in their shape, a thought that wasn't helped by them constantly spewing hot liquids into the air.
"Hey, Peebs! Marcy! Over here!" shouted a voice from further up the gorge. As they weaved through the rocks, Bonnibel and Marceline eventually spotted the blue-shirted human boy, Finn, standing beside an enormous geyser mound. "Aren't these geysers so cool? Look at the size of this one!" he said, tapping the side of the geyser. As if on cue, it blasted a plume of super-heated mist into the air, showering Marceline and Bonnibel in spring water as they drew near. "Try catching some on your tongue, it tastes like cherry soda," he said, sticking out his tongue and lapping some of the liquid up. Marceline did the same, surprised that the water did, in fact, have a distinct fruity flavor to it. Likely a byproduct of its proximity to the Candy Kingdom.
"C'mon, Finn, the spring is still up ahead," Bonnibel said, urging Finn and Marceline to follow her. The three gathered up and began walking together, side by side, through the winding paths of the gorge.
"I'm surprised you got here before us, honestly. Marcy and I really hurried to get ready before we set off," Bonnibel said as they walked.
"Well, Jake left super early to go meet up with Lady, so I didn't have a lot to do this morning. Thought I'd come out here and check out this gorge before the two of you showed up," Finn explained.
"I hope you don't mind Jake leaving for a whole week to stay with Lady Rainicorn. She's been looking forward to this romantic getaway for a while, and I'm sure he has, as well."
Finn gave a dismissive, yet casual, wave with his hand. "Nah, it's fine. I totally get it. Gotta keep your lady satisfied if you're gonna keep her, right?" he said, smirking.
"Heh, you can say that again, Finn," Marceline gave Finn a playful nudge, provoking an eye-roll from her girlfriend.
"Pff, easy there, Marcy…" Bonnibel said. The three of them shared a quick laugh.
"Besides, I don't mind being on my own for a week. That just means I have more time to spend with my other friends, like you two!" Finn said, grinning.
"That's nice to hear, Finn. I think you'll like this hot spring I found," Bonnibel said. "Speaking of which, it should be right up here…" As they walked through a rocky underpass, Bonnibel peered into the side of the gorge, her eyes lighting up as she spotted something. "Ah, there it is!" she rushed ahead, forcing Marceline and Finn to run after her. When they caught up, the cause of her excitement was made visible to the both of them.
"Woah!"
The spring was sublime, in every conceivable way. A glistening, steamy pool of water, not too deep, and not too shallow, either. It was nestled inside of a large cave, a small, jagged opening in the rocks casting a beam of sunlight into the pool, which bounced off to scatter across the cavern walls. Natural spigots had formed in the walls of the cave, pouring streams of hot water into the spring. Locations in the Land of Ooo were often better described as dangerous or bizarre, but this little alcove looked positively inviting.
"Pretty good find, huh?" Bonnibel said, smirking at Finn and Marceline as they looked at the spring.
"You bet! This beats the heck out of that hot tub I tried installing back at the tree house," Finn said.
"It's in a cave, too. That's pretty convenient," Marceline added.
"I knew both of you would like it. I dipped my toes in when I first found it, too. The temperature is perfect," Bonnibel said, making an OK symbol with her hand. "Or, at least, it was perfect when I tested it. I don't think it would change temperature over such a short time span, so it probably won't boil us to death, now."
"Probably…?" Marceline pried, raising an eyebrow. Bonnibel chuckled.
"Heh, only one way to find out, right?" she suggested, teasingly. "Did you bring a swimsuit, Finn?"
"Yep, got it in here." Finn patted the side of his green backpack.
"Great. Marcy and I will go change behind these rocks over here," Bonnibel said, moving towards a jagged rock formation that provided ample cover, while pulling Marceline along with her by the hand.
"And I'll go change behind these rocks over here," Finn replied, shuffling off behind a rock formation on the other side. Once Finn was out of sight, and the two girls were sequestered behind their privacy boulder, they began undressing. Bonnibel pulled out their bikinis from her pack, handing Marceline hers while she was taking off her shirt.
"Ugh, stupid bra…" Marceline grumbled, fiddling with the hooks on her black sports bra.
"Need some help, babe?" Bonnibel offered.
"Nah, I got it." After a bit more finessing, Marceline unhooked her bra and dropped it to the ground, breathing a sigh of relief. "That thing was giving me trouble this morning, too. I think it might've shrunk in the wash or something. Felt way too tight…"
"Hmm, that's odd…" Bonnibel commented. Once their clothes were disposed of, they shimmied into their bikinis. Like her undergarments, Marceline's bikini was black and fairly plain. Bonnibel, however, had chosen a revealing white bikini covered in pink polka-dots. Once she got it on, she struck a little pose for her beloved. "How do I look, babe?" she asked with a sultry tinge.
"You look… good," Marceline replied, taking only a moment to gaze at Bonnibel's body before returning to the plight of getting her bikini on. She confused herself with this answer. Good? She just looked good? Not great, or hot, or even cute? This was her girlfriend, in a skimpy, brightly-colored bikini, posing for her, but Marceline hadn't felt even the slightest twitch of arousal or affection.
"What the fuck, Marcy? You LOVE girls! How is your pussy dry as a desert looking at one that's barely-clothed?" her mind echoed to her, accusingly. She brushed the thoughts aside and gazed at Bonnibel a second time, after she had gotten her bikini on. Again, she felt nothing.
"Wow, you're really filling that bikini out well, babe," Bonnibel commented, a playful smile on her face. Marceline blushed.
"W-What do you mean by that?" she asked.
"What I mean is that it looks like you're about to bust right out of your top!" Feeling self-conscious from such comments, Marceline looked down at her chest. Her bikini top did look quite overstretched, the fabric digging into her chest. But, that couldn't be right, she thought. She was only a B cup, her breasts were nowhere near big enough to cause any sort of strain on a brand new bikini. Since waking up this morning, though, she hadn't really felt like a B cup. She certainly didn't look like one, either, given the pale gray orbs she now had bulging from her chest.
"Don't tell me you shapeshifted a bit just to impress me…" Bonnibel teased, drawing closer to Marceline.
"N-No way! I haven't changed at all," Marceline insisted. "This… probably shrunk in the wash, too. That's it."
"Aww, baby, you don't have to play coy about it. I'm flattered that you-" Marceline pushed Bonnibel away, quickly silencing her, and headed back into the open area of the cave.
"C'mon, I wanna get in the spring, already…" she grumbled. Bonnibel hesitated, but eventually followed her, deciding not to question her girlfriend's strange behavior.
"Finn, are you ready?" Bonnibel called, once they were standing next to the spring itself.
"Almost!" called a voice from behind the rocks. Moments later, Finn popped out again, wearing a pair of weathered orange swimming trunks. The clothes weren't out of the ordinary (for him, at least), but it was what the clothes contained that caught Marceline's attention almost immediately.
Finn was packing. There was no better way to describe it. Inside of his swimming trunks was a bulge nearly twice the size of a baseball. His package protruded proudly from his skinny hips, and while the darkness of the cave made it difficult to see, Marceline could still make out the shape of his huge balls and flaccid shaft between them. How had she never noticed this before? Marceline assumed she would've known by now that one of her best friends had such a huge package. Maybe she just never bothered to look?
After the confusion came the arousal. Marceline bit her lip as she felt her pussy quiver just from staring at Finn's bulge. She hadn't entered the water yet, but her bikini already had a bit of wetness on it, now. She felt somewhat disgusted with herself. The same arousal she should have been feeling for her girlfriend she was instead feeling for some teenage boy's bulge. Not only that, but it was much stronger.
"Quit it, you stupid horny goth dyke! Why are you getting this turned on by a cock, something you don't even like? You don't like cocks, right? RIGHT?!" she thought to herself. The thoughts were making her feel woozy…
"Is that seriously the best swimsuit you could find, Finn?" Bonnibel asked, providing a welcome distraction for Marceline's thoughts.
"It's the only one I have, actually. I figure it must be lucky or something, since it's held up so well," Finn said, proudly. Bonnibel rolled her eyes.
"If you say so. Come on, let's get in the water." Walking towards the spring, Bonnibel dipped one of her toes in cautiously. She recoiled slightly, but then touched it to the water again, allowing the rest of her foot to slip on. "Water's still perfect! Oh, this is fantastic…" she settled into the spring in moments, reclining back against its smooth, slippery edge.
"Awesome!" Finn rushed forward after her, jumping into the water on the other side of the spring. Luckily, he was far enough away so that neither Marceline nor Bonnibel got splashed. "Ahh, this feels great. You got the right idea for how to relax, PB…" he sighed, reclining back, as well.
"Wow, this does feel really nice…" Marceline entered the water next to Bonnibel, settling in a shadowy spot within arms reach of her girlfriend. The water was unquestionably a perfect temperature. Very warm, but not to the point of being uncomfortable. The tiny streams of water pouring into the spring made it swirl and bubble lightly, and the ambient noise of flowing water echoing through the cave created an all-encompassing sense of ease. "Thanks for bringing me along, Bonnie. I… needed this…" Marceline admitted.
"Aw, don't mention it, babe…" Bonnibel said, sliding across the spring to plant a kiss on Marceline's cheek. The kiss gave her just a twinge of reassurance. A small, but vivid feeling that the spark between her and Bonnibel was still there. Marceline closed her eyes, letting the warm waters caress her body, and listened to the sounds of the cave. The tranquility flushed her doubts and muddied thoughts away, restoring her to a simpler, calmer state of mind…
…At least, until she opened her eyes again.
When Marceline opened her eyes, she looked over at Finn, and then down at his crotch. Through the water, she could still see his bulge, only now, there was even more of it visible. While he relaxed quietly in the water, Finn's cock was steadily hardening in his shorts, growing thicker and longer before Marceline's very eyes. The quivering and aching in her pussy quickly grew unbearable as she saw his cock throb itself bigger and bigger, snaking down one leg of his shorts until his bulging, smooth cock head peeked out from under them. When Marceline saw this, she gasped, just loud enough for Bonnibel to hear her.
"Marcy, what's wrong?" Bonnibel whispered.
"L-Look!" Marceline stammered, pointing at Finn's crotch. Bonnibel's eyebrows shot up when her eyes met the same target.
"Oh wow…" she muttered. "That's probably just because of the hot water."
"W-Why is it so big, Bonnie? It's… huge!" Marceline whispered to her partner.
"I don't know, I guess Finn just… developed really quickly, or something…" was Bonnibel's highly-scientific analysis. "Why are you freaking out about it? We're both lesbians, aren't we? It's not like it matters to either of us."
"Oh yeah, r-right…" Marceline said, giving Bonnibel a forced laugh to dissolve the tension. The urge to stroke her pussy stupid had grown fierce, but she knew there was no way she could jill off discreetly in this setting.
"Look, it'll go down on its own, just don't bring it up. I don't think Finn wants to be embarrassed because of it," Bonnibel instructed Marceline, before returning to her spot in the spring. Marceline nodded, keeping her hands occupied by rubbing the sides of the spring's edge, as opposed to her own private parts. She crossed and uncrossed her legs several times. Her horny thoughts, though, were unshakeable. Her breath was heavy, her heart was pounding, her pussy was on fire. Her eyes refused to rest anywhere besides Finn's bulge, practically magnetized to it. She tugged on her bikini top, which somehow felt like it was getting even tighter…
Even with Bonnibel right next to her, Marceline's brain was a messy swamp of conflicting desires. An amorphous, intense yearning had infected it, but she couldn't acknowledge specifically what it was a yearning for. She refused to acknowledge what she was yearning for, because it went against everything she knew about herself! But the yearning grew, and grew, and grew…
"F-Fuck…"
She couldn't lie to herself any longer. She couldn't deny her desires. There was something she desperately needed, and now it was right in front of her, just out of reach. It didn't matter if she had entered the spring or not. Either way, she would've been completely soaked.
On her way to Finn's treehouse, Marceline's mind was a jumbled, incoherent mess. Her logic and apprehensions were still clinging on, urging her to stop, to go back and spend some quality time with her girlfriend, just to clear her head. Subduing these was an impossibly strong desire, urging her to seek out something highly specific. Usually, when vampires felt compelled to find something big, meaty, and filled with blood, it was for entirely different reasons. To balance these two warring sides of her mental state, Marceline fed herself rationalization after rationalization as she traveled.
"Don't freak out about this, Marcy. Do NOT freak out about this. You're not doing anything wrong. You're just visiting Finn's house to… have him dick you down senselessly. Oh Glob, where did that come from?!"
Her heart was thumping fast, and not just from the exercise. As the treehouse hoved into view, she worked even harder to corral her thoughts.
"It's fine, it's fine. This does not mean you're cheating on your girlfriend. This does not mean you've become some brainless, cock-addicted bimbo. You have a problem, and Finn has the solution…"
Once she was near, she peered up into the windows, looking to see if she could spot the silhouette of the hero boy somewhere. Alas, there was nothing. With the afternoon sun drooping low in the sky, she knew now that there was no going back. If she really wanted to sleep with Finn, she had to commit. The front door of the treehouse loomed in front of her, begging her to knock on it.
"It's not like it's an intimate thing. This is what 'friends with benefits' means, after all! He's a friend, and that's his benefit. His big, long, throbbing, drooling… benefit…"
Marceline bit her lip, feeling a trickle of her sweet nectar running down her leg from even this minor fantasizing. She hadn't cum in over three days, and the strain was starting to show. Not only that, but her body was becoming almost unrecognizable. Her tank top now only barely covered her chest, her tits having swollen into wobbling, round balloons almost as big as her head, creating some severe underboob from their protrusion. At the same time, she was filling out her jeans with a bubble butt that had made even Bonnibel jealous. She had no clue what could be causing these changes, but solving that mystery was the least of her concerns, at the moment. With a shaky hand, she knocked on the door.
"Bonnie would understand… she will understand, after you explain all this to her. You just need to get some dick inside you, and then you can go right back to being a lesbian…"
Behind the door, Marceline heard hurried footsteps racing down wooden stairs. Moments later, the door swung open, with Finn standing behind it.
"Marcy! What's up? What are you doing here?" he asked, still as happy as ever to see her.
"H-Hey, Finn!" Marceline greeted him with an awkward giggle. Even just looking at him, she was feeling attraction and arousal of unbridled intensity, which certainly wasn't making it any easier for her to keep her composure. "You're… not busy tonight, are you?"
"I don't think so," Finn answered, simply.
"Cool, cool! In that case, I was wondering… do you think I could… stay the night?" Marceline asked, rubbing her hands together and dropping her gaze to the floor.
"Really? You wanna stay over?" Finn's look of surprise wasn't severe, but it still provoked a reaction in Marceline.
"I-If it's okay with you, of course!" she stammered, letting out another awkward giggle.
"Yeah, it's fine, but I thought you and PB were planning some kind of fancy candlelight dinner or something. That's what she told me, at least…" Finn scratched the back of his head, slightly confused.
"Oh, yeah, uh… we kinda called that off, a little while ago. Bonnie had a… thing, she had to go do, in the Candy Kingdom…"
"She never told me about any-"
"We called it off, okay?!" Marceline snapped, making Finn jump slightly. "Look, I don't really like the idea of spending the night at my house alone, and I figured you were pretty lonely here too, with Jake gone and all that, so… how about a surprise sleepover?" she asked with pleading eyes. Finn pondered for a second, but soon smiled and clapped his hands together.
"You got it!" he exclaimed, filling Marceline with overwhelming relief. "Come on up, I got some leftover pizza with red sauce that I was gonna heat up, if you're hungry." Finn raced up the stairs into his treehouse, leaving the door wide open for Marceline to follow him. She stepped through and closed it behind her, walking slowly, but with vicious determination, driven by a desire she was now only moments away from satiating.
"Oh, Finn, I'm starving~"
"...And so that time, Jake actually got the sliding block puzzle right, but that makes this Living Monolith wake up right next to us. It launches into this whole speech about how it's been the guardian of the blah blah blah for like a bajillion years, but Jake and I are both laughing because one of the glyphs on it looks like a butt, and-"
While getting into Finn's house had been easy enough, getting into his pants was another matter entirely. Even with the now pornographic proportions of her body, no amount of sexy posing or subtle reveals had distracted Finn from his storytelling. Now, much to her dismay, Marceline was both horny and bored.
"Ugh, does this kid ever talk about anything besides adventuring? I thought boys his age were brimming with hormones, but he hasn't even tried to grope one of my tits. When is he just gonna shut up and fuck me?!" Marceline thought to herself, sucking the crimson tint out of the sauce in a slice of pizza. "Looks like I'm gonna have to do most of the heavy lifting. Time to work some of that classic vampire queen charm on him…"
"Hey, Finn…" Marceline spoke up, the flirtatiousness of her voice bringing a sudden halt to his rant.
"Hmm?"
"Yesterday, when we were at the spring, I noticed something… new about you." Marceline floated over to where Finn was sitting, sliding right up next to him. She saw him gasp when the side of her bulging chest pressed against his shoulder. "Seems like you were packing a pretty impressive 'sword,' huh?"
"Uh, I'm pretty sure I didn't pack any swords…" Finn said, rubbing his chin. Marceline groaned, pushing herself closer to Finn in an even more desperate effort to get some attention.
"Not an actual sword, you dork! I'm talking about this thing~" Marceline let her hand creep down Finn's chest, eventually landing on his groin, which she gave a few playful pats. Even through his pants, she could see the immense profile of his package, adding even more fuel to her burning lust.
"O-Oh, that…" Finna stammered, gulping as soon as Marceline touched his crotch.
"You're pretty big for a boy your age, Finn. How many girls have you 'slain' with this monster~?" Marceline pried, giggling to herself.
"Well… none, I guess," Finn admitted, blushing.
"Wait, for real?" Marceline took a moment to respond, not expecting a negative answer.
"I couldn't exactly do that with Flame Princess, back when we were dating, and I haven't had a lot of luck with girls besides that, so…" Finn shrugged, leaving Marceline a bit dumbfounded.
"Huh…" She paused to think of a new course for her seduction. "Is Finn seriously a virgin?! How is that even possible?! Every single woman in Ooo would be throwing themselves at him if they knew what he was packing! Guess he's just been unlucky… Oh well, if I'm gonna be the one to pop his cherry, so be it. I'm getting that dick one way or another!"
"That's a real shame, Finn. You've never gotten a chance to put this massive cock of yours to the test…" Marceline cooed, giving his bulge a few more pats. "Maybe… You'd let me play with it, for a little while?" She put her finger to her lip, mustering the most pleading gaze that she could.
"Seriously? You wanna do that with me?" Finn asked, blushing brightly.
"I've been pushing my giant tits in your face this whole time, Finn. What do you think I want to do with you?" Marceline shot back with sass.
"I'm just… a little confused. You and PB have been girlfriends for a while, and this doesn't seem like something she'd be cool with." Finn's admonishment made Marceline cringe a little.
"So? It's just the two of us here, why shouldn't we have a little fling? What Bonnie doesn't know isn't gonna kill her," Marceline argued. She pressed herself closer to Finn, trying to go in for a kiss, but he soon came up with another defense.
"But I thought you didn't even like guys! You said you were only gonna date girls from now on, remember?" Marceline cringed again, reminded of something else she had sworn to in the past.
"Of course I remember, I just… ugh!" She grunted and rolled back to her side of the couch, pressing her fingers to her temples. "Look, Finn, for the past few days, I've been feeling these… urges."
"Urges?"
"Urges! I'm feeling desperate for cock, it's all I can think about! I tried masturbating to get the horny thoughts out of my brain, but all that did was make it worse, and now I haven't cum in days. It's driving me crazy!" Marceline cried. Finn nodded thoughtfully.
"Hmm, that sounds pretty serious…" he reasoned. "Have you told Peebs about this? She's super smart, I'm sure she could figure out what's happening to you."
"Are you kidding? There's no way I can tell her about any of this! She'd flip out if she knew I was horny for someone other than her, and she'd flip out again if she knew that someone was a guy. You know how Bonnie gets when she's angry, don't you?"
"All too well…" Finn grimaced, mirroring a pained look from Marceline.
"Right now, I'm too horny to figure out how to fix this myself, and the only thing that I think is gonna help is getting ravaged by the fattest cock I can find, which is yours," Marceline pointed to Finn's bulge, making him blush a little. "C'mon, Finn, this'll be fun. Don't you wanna play with these fat vamp queen titties of mine, at least?" Marceline squeezed her breasts together with the sides of her arms, pushing up her cleavage towards Finn's view.
"T-They are pretty big…" he muttered, mesmerized. Marceline caught a series of small twitches in his bulge, making her grin with excitement. "What if you end up feeling this way again, though?"
"Then we'll fuck again, obviously. We could even make it a weekly thing." This thought intrigued Marceline, leading her to linger on it a bit more. "Yeah, I could still be a lesbian and have cuddle time with my girlfriend, while also getting absolutely destroyed by the biggest cock in Ooo every weekend. That's not a dumb plan, right?"
"Uh…"
"Don't answer that."
"Okay!" Finn smiled and sat perfectly still, waiting for Marceline to break the silence for almost a minute. "So… What happens now?"
"Now… I'm gonna fucking feed~" Marceline licked her lips, her vision locking in on Finn's groin. "Take your pants off, Finn…"
Finn did as he was asked, removing his pants and his underwear. When Marceline got a look at his cock, her jaw dropped. Even while soft, his pale, plump member was thicker than her forearm and nearly a foot long. It rested upon his melon-sized balls like a throne, the heft of which made Marceline certain of his virility. If the hero boy had been as busy adventuring as she had been led to believe, he likely hadn't cum in weeks, so those things were certain to be packed full.
"Glob, it looks even bigger with them off…" Marceline muttered, crawling towards Finn and sliding her hands onto his taut sack. She couldn't even get her hands around one of them, they were that huge. At the same time, she pressed her face against his flaccid cock, softly kissing and nuzzling it as she took in deep breaths of his scent. Finn's heat and musk made her head spin, and convinced her even more that what she was doing was completely right.
"C'mon, hero, let's see you get nice and hard for me~" Marceline gradually coaxed an erection out of Finn, licking the sides of his shaft as it grew hotter and harder. She grew more and more excited as his cock inched its way towards full mast, marveling at the sheer size it was gaining. All of this throbbing, rock-solid cock flesh to play with. The thing she had been lusting at for the better part of the week, and now, it was all hers.
"Yeah, that's more like it…" Once Finn's cock had chubbed up enough, she put her vampiric dexterity to work, planting her mouth on his tip and suckling at it. Finn winced and moaned, eliciting a giggle from Marceline. "That feels pretty good, huh, Finn?" she teased, squeezing and massaging his balls.
"Mm-hmm," Finn mumbled, biting his lip. "Y-You really want to suck on it, Marcy? When I shoot my goo, it comes out pretty thick…"
"Good. I don't like to go hungry…" Marceline growled. Putting her lips back on his tip, she started slowly working her mouth down his shaft, circling it with her tongue the whole time. She stuffed inch after inch of dick down her throat, relishing in its jaw-straining thickness. Nothing about being a lesbian could compare to this, the incredible sensation of swallowing a fat cock whole. The further she took it, the hornier she got, wanting more and more and more of Finn's dick. Once she hit the base, her eyes rolled back, a few tears streaming down her cheeks.
"Oh my Glob, Marcy, are you okay?" Finn cried. Marceline flashed him a thumbs-up, choking herself on his dick for a few more seconds before pulling off of it.
"F-Fuck, I needed that," she panted, catching her breath. She brought her mouth back to his cock almost instantly, sucking and kissing it as she lapped up the streams of precum that were rushing out of his tip. Somehow, it tasted sweeter than honey to her. "Ugh, I need all of that hot cum inside of me already! Time to speed things up…"
RRRIP!
Lacking inhibition of any sort, Marceline tore open her struggling top, allowing her firm, utterly enormous breasts to bounce free. Her prodigious vamp-udders had swollen to a size rivaling her head, and while Bonnibel had enjoyed fondling them, Marceline now knew what the true purpose of her inflated rack was. Those overstuffed massage pillows of her were the ultimate tools for draining gallons of man-milk out of a monster cock, and right now, her thirst was insatiable.
"Mmf! Bet these will get you to cum!" Marceline flaunted, squeezing her tits around his shaft and pumping them up and down. With each draw upwards of her cleavage, she siphoned spurts of precum out of Finn that she greedily licked up. Combined with her relentless sucking, she was easily giving the boy the best first time he could possibly ask for.
"Marceline, t-this feels amazing!" Finn moaned, involuntarily bucking his hips against Marceline's movements. She grinned, going even faster. The heat of his cock and churning of his balls were both giving her plenty of encouragement.
"S-Speak for yourself, if this keeps up, I might cum too!" Marceline moaned. Although her hands were occupied, she didn't have to use them to pleasure her aching pussy. The heat, the musk, the precum, it all turned her on so much that she was shivering with lust, her cunt edging itself closer and closer to orgasm the more she pumped and worshipped his cock. "I know you were staring at my giant tits from the moment I showed up. Do you have any idea how fucking horny you were making me?!"
"I-I can't help it, they're just so big!" Finn defended. Marceline giggled smugly.
"You got that right, hero. Big, and getting bigger~" When Marceline said this, she felt a sudden surge of heat rush through Finn's cock, his throbbing reaching a maximum pace. She quickly forced part of his cock down her throat, awaiting her "dessert."
"M-Marcy, I'm… I-It's… AAH!" Finn's hips thrust upward as he came, driving his cock further into Marceline's mouth. He released a powerful, ludicrously thick spurt of cum, and then another, and then another. Over and over again, for nearly a minute, he filled Marceline's throat with his seed, the vampire queen gulping down every single ounce. As the cum filled her belly, she was totally overpowered with lust. Nothing but the raw, all-consuming thought of cocks filled every crevice of her mind. She shuddered, having a handsfree orgasm at the exact same time, pushing away any remnant thoughts of her girlfriend she might have had. When Finn stopped cumming, she nearly forgot to pull her mouth off of his dick to breathe.
"Ooh… y-yeah…" Marceline moaned happily to herself, rubbing her cum-stuffed belly. A far cry from what she was used to normally eating, but something that had sated her hunger far more effectively. Or, at least, a portion of it. Already, she was eyeing his cock again, wanting more. Lusting after more. Lucky for her, it wasn't showing any signs of going soft.
"Wow, Marcy, that was… awesome…" Finn sighed, reclining back on the couch. As he was about to relax, however, he felt a tugging sensation on his penis. "Huh?"
"Oh no, we're definitely not done yet~" Lust dripped off of Marceline's words just as cum dripped from her lips. She jerked his dick rapidly, keeping it stiff and hot for her. "You only filled me up from one side, after all.." She threw herself onto the floor, resting on her tits as she pushed her bubble ass up in the air, wiggling it in front of Finn. "Time for you to fill the other side~"
"Woah…" Finn, mesmerized by Marceline's wobbling badonkadonk, crept towards her on the floor, slapping his cock against the top of her cheeks and making her moan. "I can't wait to see what this really feels like!" he exclaimed, gleefully.
"Stuff it in me, Finn! I want you to fill my womb, ravage it. Plunder every single inch of my 'dungeon~'" Marceline teased.
"That… was a weird way to put it." Finn cringed.
"...Yeah, I guess it was. Just hurry up and fuck me already!"
Pulling his looming cock back, Finn steadied his hips, pointed his tip towards Marceline's beckoning slit, and…
"Ow! What the heck are you doing?! I said fill my womb, not my butt!"
"Sorry! I forgot which was which for a second there."
"You're such a dork, Finn…"
…He pushed it in. Slowly, at first, but quickly becoming more forceful. Both him and Marceline let out long, sensual moans as he inserted herself, stretching out her pussy more than it had ever been stretched before. Marceline was awash with ecstasy. Nothing she had ever done with Bonnibel compared to this. No amount of rubbing, tribbing, or teasing could compare to the mind-melting sensation of being filled by impossibly thick prick. It was so intense, Marceline found herself about to have another orgasm before Finn was even fully inserted.
"F-Fuck, oh fuck! Finn, I'm cumming already!" Marceline cried, pushing her ass back so his cock was fully hilted inside her. As her head pounded with pure pleasure, her pussy clenched around his shaft, trying to pull it even deeper into her womb.
"Do you want me to-"
"KEEP GOING!"
Finn didn't hesitate. That untempered teenage lust Marceline had been counting on kicked into full force as he began pounding her from behind. Thrusting back and forth, the weight of his endowments didn't seem to slow his hips at all. His heaving balls slapped against the back of Marceline's thighs with each pump, creating loud, lewd percussion that emphasized the strength behind each motion. Marceline was barely able to come down from her orgasm once Finn started thrusting, his movements keeping her in a state of perpetual bliss.
"Fuck yes! YES! This is what I've been waiting for! This is what I NEEDED!" Marceline screamed, pushing her hips against Finn with every thrust. Her gigantic ass clapped wildly as it bounced off of his body, making for the perfect brace as he grabbed her hips to pump even harder. "I-I need you to fuck me every single day from now on, Finn! Bonnie can't satisfy me anymore! No woman can! Only you!" Marceline bellowed, renouncing her sapphic tendencies as another orgasm hit her brain. This surge of pleasure triggered a sudden change in her body, amplifying it further…
"Nnngh, oh fuck, it's happening again…" Marceline groaned, feeling the heat from her pussy move upward and into her chest. Just like in her dream, it settled inside her breasts, filling all the way out to her skin as they swelled up bigger and bigger underneath her. "Y-Yes! My tits are growing again!" Marceline exclaimed, squeezing her inflating bust and rocking forward on it, tightening the pressure in her tits and making their growth even more orgasmic. What was happening to her was now obvious. The more Finn fucked her, the more her body was molded into that of a perfect ball-draining bimbo, and she absolutely loved it.
"Marcy, I don't think I can hold it in for much longer, a-aah!" Finn moaned behind her, now jackhammering her rear relentlessly. Marceline couldn't wait any longer, either. She needed to be filled with cum. She needed every last thought of Bonnibel to be washed away in the white tide that was boiling out of Finn's balls.
"Don't hold anything in! Pump it all into me! Fucking FILL me!" Marceline demanded. Finn's cock thickened inside of her, pressing up against her womb as his seed rushed through his shaft, and once it was finally released…
"OH GLOB YES!"
Marceline had lived for over a thousand years, and in all that time, she had never cum as hard as when Finn ejaculated inside her. His semen poured into her womb and filled it out completely, turning her into even more of a bloated cum balloon. Her head was totally emptied by the magnitude of her orgasm, leaving her able to only cry out in bliss as he continued cumming inside her. Finn's second load proved even bigger than his first, taking more than a minute to be fully drained inside his bimbo vampire fucktoy. By the time they were done, both were gasping and trembling, overwhelmed by what had just been the best sexual experience of either of their lifetimes.
"Ooh…" Marceline rolled her head around as she steadied her vision, feeling very dazed after her total ravishing.
"Marcy…" Finn moaned from behind her. She giggled, reaching behind her to stroke his hair as he collapsed onto her back.
"Y'know, Finn, I think you make for a better boyfriend than you realize," she said, slyly.
"Marcy, your phone…" he grunted. When Finn said this, Marceline suddenly became aware of the sound of her cell phone ringing nearby. She didn't know how long it had been ringing for, but clearly her brain had failed to make its presence known up until now. Struggling to move with her immense tits and belly, she reached to her side and picked it off of the ground, checking the number. It was Bonnibel.
For one infinitesimally-small moment, she had clarity. She realized the gravity of what she was doing, the sacrifice she had made by bailing on her girlfriend and cheating on her behind her back. But this was only for a moment. Marceline had no time to dwell on these thoughts, because just as quickly, her lust returned, and with it the certainty that what she was doing was completely and utterly right.
"Who is it…?" Finn asked, still panting.
"...Nobody important," Marceline answered with a smirk, ignoring the call and tossing her phone aside. She had bigger things to focus on, after all. Much bigger things.
"I hope you're not giving out on me yet, hero. I think I wanna go for round three~"
RRRRRING! RRRRRING!
"Nnnf… H-Hello?"
"Finally!"
Bonnibel was mad. She was pissed. She was furious. Every single possible word to describe her feelings of anger wouldn't have been enough to properly convey just how angry she really was. She had been pacing all night, restlessly, trying to figure what had happened to her dear girlfriend. After numerous failed phone calls and aimless hypotheses, the sudden answer from Marceline sent Bonnibel's rage to its absolute limit.
"Marceline, where the fuck are you?! Why haven't you been answering any of my calls?! What's going on?!" Bonnibel bombarded Marceline with questions as soon as a connection was established. Marceline grumbled over the line, sounding very lethargic.
"Oh, it's you, Bonnie…" she mumbled, still in some kind of stupor.
"Yeah it's me! Who do you think has been trying to call you all night, huh?!" Bonnibel shot back. "It's one thing for you to miss that romantic dinner I planned, but not coming home all night? Do you have any idea how worried you made me?!"
"Bonnie, I'm sorry…" Marceline answered. Her attempt to garner sympathy was quickly squashed.
"Nuh-uh, save it. I don't need to hear your apologies. What I need is to know where you are right now."
"I'm at… Finn's place…" This answer made Bonnibel's anger mix with a surge of confusion, creating an even more potent emotional cocktail.
"What?! Why? What could you be doing there that's so important, you didn't even come home or answer any of my calls?"
"Bonnie, I swear, I'll come home soon, I just…" Once again, Marceline's voice was cut off swiftly as Bonnibel brought down fierce judgment upon her. She wasn't about to trust anything she said over the phone until she tracked Marceline down and got some answers herself.
"Nuh-uh, save it. I'm not going to hear excuses. What I'm going to do is come over there and figure out what's going on, and you better have a good explanation ready for me!"
"No, Bonnie, you don't have to-"
*CLICK*
Bonnibel hurried over to Finn's treehouse as fast as she could. This was hardly a casual visit, so she didn't bother trying to be polite. Instead of knocking on the front door, she barged right through it, charging inside and declaring her presence almost immediately.
"MARCELINE!" she cried, searching around for any sign of the vampire queen. When she got no response, Bonnibel ran up the stairs into the living room of the treehouse. "Marceline, where are you?!" she yelled again, demanding to see her girlfriend. Soon enough, she did find Marceline, but in a position so compromising, so shameless, it made her stop right in her tracks.
*Smooch* *Slurp*
Sitting on the couch in Finn's living room was, predictably, Finn. He was nude from the waist-done, and his gargantuan half-hard cock pointed outwards directly towards Bonnibel. Sitting next to him was Marceline, wearing nothing besides panties, and with the biggest tits Bonnibel had ever seen. She was currently letting her tongue dance in his mouth while she gently stroked and tugged his shaft. It took several moments for her to notice that Bonnibel was there, causing her to withdraw her mouth from Finn's and greet her grumpy girlfriend.
"Oh, hi there, Bonnie~" she said, licking saliva off of her lips.
"Hey PB! What are you doing here?" Finn said, happy to see the princess and otherwise oblivious to the gravity of what she was seeing.
"Marcy, what's going on here…?" Bonnibel asked, her anger turning into abject terror as she stared at the love of her life still giving Finn's cock some steady stroking.
"What does it look like? I'm helping my boyfriend out with his morning wood, obviously…" Marceline answered, rolling her eyes.
"B-Boyfriend?!" Bonnibel exclaimed. "Marcy, you're-"
"Cheating on you? Yeah, I guess I am. Honestly, though, I figured you would find out sooner or later…" While Bonnibel's accusation didn't faze Marceline all that much, Finn looked somewhat concerned.
"Uh, should I be worried about this?" he asked, sheepishly.
"Oh, you don't have to worry about anything, my hero~" Marceline smiled and leaned in to give Finn another kiss, sliding her hand up to his tip and wetting her palm with his precum.
Even Bonnibel's outstanding scientific mind couldn't process what she was currently seeing. Everything she had known about Marceline, everything she had understood about their relationship, it had all come crashing down in a single instant. "But you're-"
"A lesbian? Yeah, I thought that too, for a while, but this thing convinced me otherwise…" Marceline bounced Finn's cock up and down, practically waving it in front of Bonnibel. "Honestly, I don't know how I ever managed without this thing, and now that I've let it rearrange my insides, I certainly can't go back to just rubbing girl parts with you."
"B-But I'm-"
"My girlfriend? Yeah, I guess you were…" Marceline chuckled to herself. "Really though, how am I supposed to love someone if they can't even make me cum?"
Already, Bonnibel could feel the tears streaming down her face, possibly from anger, or possibly from the devastation she was now feeling at this sight. Her crying was finally what compelled Marceline to get up from the couch and approach her.
"I-I can't believe you would do this, Marceline… To me, of all people…" Bonnibel said with a sniffle. Marceline brushed a hand against her cheek, wiping away her tears. She gave her a smile, and for a moment, Bonnibel thought that things might just be okay.
"Aww, don't be so sad about it, Bonnie…" Marceline cooed. "After all, it's not your fault you can't compare to a hero's fat cock…"
"F-Fuck you!" Bonnibel cried. Marceline simply giggled in response.
"Oh, is that an invitation?" she said, pressing her gigantic breasts up against Bonnibel's comparatively meager chest. "You know… he's more than big enough for the two of us to share~"
"Are you nuts?! I don't like-"
"Yeah, yeah, 'I don't like cocks,' right? See, that's exactly what I said to myself… until I had one right in front of me…" As lustful words fell out of Marceline's mouth unabashedly, Bonnibel found her heart beating with an uncertain intensity. "Don't kid yourself, Bonnie. You've been staring at Finn's cock ever since you came up here."
"N-No I haven't!" Bonnibel insisted. Marceline giggled again, pressing herself even more firmly against her former girlfriend.
"Oh yeah? How do you explain this, then?" Without any warning, Marceline reached a hand down and fondled Bonnibel's pussy through her pants, making her squeal. The heat and wetness surrounding it was very distinct, and it was only when Marceline began to touch it that Bonnibel realized she was feeling aroused. How that was even possible was something that completely eluded her. She was feeling several emotions right now, but arousal certainly wasn't one of them… right?
"Aah… T-That's not… That doesn't mean anything!" Bonnibel insisted. "Marceline, this whole thing is crazy! This whole thing is totally crazy, and you're crazy too!"
"You sound confused, Bonnie. Here, maybe getting a closer look will make everything better…" While Bonnibel was reeling from her unexpected bout of strange arousal, Marceline pulled her over to where Finn was sitting, bringing her to a kneel and position her face only a short distance away from his pulsating dick. "There we go. What do you think about cocks now, huh, Bonnie~?"
"This doesn't change anything, they're still… I-I'm not…" As Bonnibel tried to formulate a response, she found it increasingly difficult to think of what to say. Coming up with strong, logical arguments (or, in this case, a counter-argument) was usually no trouble for her, but now that she was knelt on the floor, with Finn's cock inches away from her face, her thoughts had become wispy and vague, like there was a fog that had just crept into her brain. What exactly was she trying to argue against? She suddenly couldn't remember…
"Glob, it's so huge…" Bonnibel muttered under her breath. She soon found her face gravitating towards Finn's shaft slowly, practically on its own. As she grew closer, the heat and scent of his gigantic boyhood tickled her nose, making her gasp lightly. It was so warm, and smelled so potent. The fogginess in her brain grew thicker. Why exactly had she been so angry in the first place?
"I think… I think…" Bonnibel stuttered, struggling to form a coherent thought as the presence of Finn's penis overwhelmed her brain. Her lips were quivering, less than an inch away from his shaft. Her pussy was tingling, a ferocious heat having welled up inside of it. Her head felt so strange, but in a good way. A very good way…
"I think… I wanna give it a taste…"
And with that, the Bonnibel that had originally entered the treehouse, the one that had lashed out at Marceline over the phone and was willing to do anything to get her girlfriend back, was gone. In her place, a new Bonnibel emerged, one with only a single thought echoing through the hollow expanse of her mind: servicing Finn's fat cock.
SLURP… SUCK…
Bonnibel wasted no time in fulfilling her new mission. Her lips magnetized themselves to Finn's shaft, sliding up and down its length as she coated it in her sugary saliva. Her tongue traced his bulging veins, savoring the warmth of his awesome bitch-breaker.
"There we go, that feels way better, doesn't it~?" Marceline encourage, smiling as she watched her former girlfriend completely submit herself to the supremacy of Finn's monster cock.
"Aaahn, m-more…" Bonnibel whimpered, pulling her mouth away from his dick for only a moment. She used one of her hands to stroke the underside of one of his balls, deepening the sensation for the hero boy.
"You're right, a cock like this does deserve more worship…" Taking the other side of Finn's cock, Marceline put her mouth to work, as well, kissing, sucking, and drooling all over his shaft. The only thing that stood between her and Bonnibel's lips was a rigid, pounding wall of cockflesh, which both of them were committed to making as hot and hard as possible.
"Marcy and PB sucking every part of my dick… This is the best day ever!" Finn exclaimed, grinning with delight as he watched his two new sex slaves attend to their duties.
"Hehe, we're just getting started. How about we make things more interesting, Bonnie?" Marceline asked, smirking.
"H-Huh?" Bonnibel stuttered, her intense sucking having left her disoriented and mind-numbingly horny.
"Wanna show Finn that 'trick' you can do, with your thumb?" Marceline winked at Bonnibel, and she quickly recalled just what the trick she mentioned was.
"Really? Y-You want me to do that?"
"C'mon, Finn would love it, and besides…" Marceline lifted one of her heaving tits, bouncing it up and down for Bonnibel to see. "You've got some catching up to do~"
"Alright… But I don't want either of you to laugh!" Bonnibel huffed. Rolling one of her hands into a fist with the thumb outstretched, she brought it to her mouth, taking in a deep breath. Then, she stuck her thumb in her mouth, and…
FWOOOMPH!
Blowing as hard as she could, Bonnibel sent a rush of air directly into her chest, instantly inflating her breasts up to an absurd size. Her mosquito bites swelled out into a pair of gigantic pink party balloons in less than a moment, jiggling profusely once she filled them. The inflation happened so quickly, it surprised even Bonnibel, making her squeal and moan loudly.
"Aah! F-Fuck, I nearly made myself cum doing that!" she gasped. Marceline looked on with satisfaction, while Finn stared with wide eyes and an open mouth.
"Woah, how did you do that?" Finn asked, astonished.
"Well, I am made of bubblegum…" Bonnibel said, giggling.
"You can do the same thing to her butt if you blow into her pussy," Marceline added, making Bonnibel blush. As Finn was transfixed by her tits, Marceline brought her own chest up to his crotch and casually slid his cock between her breasts. "Wanna help me out here, Princess Bubbletits~?"
"Mmm, I'd love to…" Carrying a lewd grin on her own face, Bonnibel pushed her own huge chest parallel to Marceline's tits, squishing Finn's cock at the intersection between their breasts. Bonnibel rarely had tits this big, and she had never tried to pleasure a cock with them before, but somehow, the technique instantly came to her. Effortlessly, she began to mirror the motions that Marceline was making, pushing Finn's shaft up and down through her bubbly cleavage. Her breasts were undeniably the perfect companion to Marceline's pair, with her tits being round and bouncy, while Marceline's were soft and squish. Put together, their racks drowned Finn in utter bliss.
"U-Unf! Marceline and PB giving me a titfuck at the same time! A-Awesome!" Finn exclaimed. This situation was the kind of thing a randy teenage boy like him could only dream about, and while he had entertained fantasies like this in the past, he never expected they would actually come true. The excitement was clearly affecting his loins, as well, causing his cock to launch regular spurts of precum as he struggled to contain his seed. Even after how much Marceline and him had fucked last night, there was still plenty in need of release…
"Yeah, that's it, Finn. Splurt all over our slut udders~" Marceline growled, running her tongue over his shaft and massaging his tip with it. Bonnibel didn't speak at all, her mouth preoccupied with all the slurping and sucking she was doing. As she pressed her bubblegum balloon tits together around Finn's shaft, she eagerly peppered it with kisses, leaving pink marks all over his cock. With all of this attention from both girls at once, it was only a matter of time until…
"NNGH!"
With a ferocious grunt, Finn's cock lurched upwards and began to release a deluge of cum all over the floor, blasting rope after rope of fresh baby batter that his balls had churned up the night before. Each spurt was accompanied by a powerful throb through his entire shaft, making it pulse against Marceline and Bonnibel's chests. When the spurts faltered into a steady dribbling stream, both Marceline and Bonnibel took to licking it up, savoring the taste of their mutual boy-toy's seed.
"I can't believe you can still cum this much, after how hard we fucked each-other last night. You're such a stud, Finn~" Marceline cooed. Bonnibel was equally transfixed by the amount of cum he had just unleashed, marveling at its sheer volume.
"Yes, he's… quite the specimen…" Bonnibel muttered, continuing to press her lips to Finn's cock repeatedly. "Oh, I'm so sorry, Finn. If I had known you were so… virile… Well, Marceline and I might have never started dating!" She giggled to herself at the thought, too delirious with lust to even consider the implications.
"Can't say I blame you, hero cock is just that good~" Marceline added, giving Finn's shaft another long, wet kiss. "See? There's no reason we have to fight about it. We can both be his girlfriends!"
"Hehe, I can't really argue with that," Bonnibel said, blushing. She thought back to all the times she had ignored Finn's advances, all of the unrequited love he had shown her. It seemed so selfish of her, in hindsight, but she knew that now. Luckily, she was more than willing to make it all up to him.
"So, Finn, what do you think about having us do this to you every single day from now on, huh?" Bonnibel offered slyly. Finn, still reeling from the intensity of his orgasm, croaked out only a weak response.
"B-But… A-Aren't you two still girlfriends?"
"Of course! We're your girlfriends, silly~" Marceline answered. Bonnibel and her both giggled, and then stared deep into each-other's eyes. The mutual longing they both had was still there, but now, it was redirected to the one thing that had become the center of their entire existences.
"Oh, Marcy, I…" Bonnibel moaned, her face drifting back towards Finn's cock yet again. "I love cock…"
"I love cock, too~" Marceline responded. They both kissed Finn's cock, making it twitch one last time.
They really were the happiest couple they could be.