Patty took a fearful step back as I transformed, my skin turned an ashen grey covered with faint satanic markings, and a pair of goat horns grew out from the corners of my forehead. But they were almost completely covered as my hair turned into a wild mane of obsidian locks, and my ears lengthened and tapered off into a sharp point.
At the same time, I felt my bones and muscles stretch as I grew several inches and gained several pounds of lean muscle, adding to my broad physique. There was also the fact that I went from standing on feet, to standing on cloven hoofs attached to a pair of goat legs.
Then, with a final surge of demonic energy, a leathery snakeskin tail grew out from my tailbone, finishing my transformation.
My clothes had been shredded in the process of my transformation, leaving me in nothing but a pair of boxers, but I couldn't care less.
A soft sigh of relief escaped my nostrils as a comforting ease reminded me that being in my human form could never compare to my true skin.
The relief was so strong that I had nearly forgotten what prompted me to transform in the first place. 'Well, she's not screaming in terror, so that's a good sign.'
I looked over to find Patty standing a few feet away, staring at me with wide, unblinking eyes, and her chest slowly heaving up and down, which was a rather enticing sight given how exposed they were.
"Is this some sort of trick?" Patty asked, her eyes roaming up and down my body as she tried to make sense of it all, "Am I dreaming right now?"
"Well, usually when a demon appears in front of someone, they assume they're having a nightmare," I answered lightly as I slowly took a step towards Patty, surprised when she didn't flinch or step back, "And no, you aren't. Everything you're seeing right now is real."
"T-this shouldn't be possible," Patty mainly muttered to herself as doubt flickered across her eyes, "You've been a demon this whole time?"
I nodded, "For as long as you've known me, but I used to be human once. But then, for some reason, I came back like this. I know it can be a lot to adjust to but-"
I paused my explanation as I noticed a rapid change in Patty's behavior. A heavy flush had spread across her cheeks, and her eyes were practically glowing as she stared at me. Her breathing had also picked up, but instead of being afraid, Patty looked excited.
"You're really a demon," Patty gasped as she walked towards me, almost in a daze, with her hands outstretched, "A true hellspawn, a child of satan!"
"Well, I'm not sure hell is a real place, or if satan really exists," I tried explaining the finer details of my existence. Still, Patty didn't seem to hear any of it as she practically threw herself at me, her hands shooting up to tangle in my hair and run along the ridges of my horns.
The sensation was surprisingly pleasant, but it wasn't enough to distract me from the sudden mood shift Patty was displaying.
"I'd always dream about being in a situation like this...But I never really thought it would happen...it's like I'm the main character in a dark fantasy romance novel." Patty muttered excitedly as she bit her lip and looked up at me, "If you're revealing your true form, does that mean you're going to claim me as your property. Bind my soul to yours and take me to your infernal realm where you'll use my body to sate your hellish desires."
I stared at Patty, wondering where all of this was coming from, as her arousal seemed to be growing by the second, judging by her heavy, excited breaths.
Then I remembered a very sage piece of advice I had heard many years ago, 'It's the quiet ones you need to watch out for.'
Patty's mention of dark romance only confirmed this for me, as her eyes took on an almost fanatical light as the desires she usually kept repressed and hidden surged to the surface.
"Well, I don't have an infernal realm," I muttered as I wrapped my hand around Patty's neck while my tail coiled around her thigh, making her gasp and tremble, "But if you're offering, I wouldn't mind claiming your soul."
"Y-yes, please," Patty moaned as her hands latched onto my wrist, though she didn't try to pry my hand off her neck. Instead, she took my thumb and sucked it into her mouth while staring directly into my eyes, "You can do anything to me...I just want to be yours, I want you to love me!"
I could help but shake my head as Patty's personality completed its 180 shift, "You're really pent up, aren't you...tell me when was the last time you pleasured yourself."
"This morning," Patty answered with hesitation, though her cheeks turned bright red at the admission, "I also did it that night, and the night before...I do it every night, ever since we did it at the mall!"
Patty's breath was raspy as the confession came pouring out of her, "And when I do it, I always think about you. I imagine you coming in through my window and punishing me for doing something so dirty!"
"Well then, shouldn't punish you now for admitting everything you've done?" I asked innocently as I squeezed Patty's neck, making her gasp and her eyes roll up with pleasure.
"Y-yes!" Patty moaned as a shiver passed through her entire body.
"Are you sure? I might lose control a little bit. Are you confident that you can handle me?" For emphasis, my other hand reached down and grabbed Patty's waist, pulling her against me so she could feel the massive bulge in my boxers.
But Patty didn't even flinch, continuing to stare me in the eyes with an unwavering devotion, "No...but I want you to ruin me."
The scent of Patty's desire had filled the entire kitchen, inflating my lungs with the potent aphrodisiac, turning my cock into a solid rod of steel.
A low guttural growl reverberated out from my chest as the last semblance of my control vanished in the face of Patty's overwhelming enthusiasm, and I pounced on her like a wild animal.
Patty yelped in surprise as she was suddenly driven to the floor with me on top of her. But I silenced her with my lips, wrapping them around hers, opening a path for my tongue to invade her mouth.
Patty moaned as I pumped my saliva down her throat, igniting a heavy fire in her stomach as the sickly sweet syrup burned with lust.
I could feel Patty's body heat up as her moans became more and more desperate. Her arms and legs wrapped around my body while grinding her crotch against mine.
The thin fabric of our underwear wasn't nearly enough of a barrier as the burning heat of our bodies clashed. I could practically hear the slick fluids coating the front of her panties, and I was proved right a few seconds later when I felt the wetness soak through my boxers.
Reaching down, my fingers slipped in between our bodies and then under the hem of Patty's panties. I grinned against Patty's lips, feeling her soft and plump mound that gave off enough heat to rival a fireplace.
Patty gasped, arching her back off the floor as my fingers started to explore her slickened folds. Breaking away from the kiss, I stared down at Patty and watched her writhe around with pleasure, "Tell me how much you want me, beg for it."
"I want you to fuck me!" Patty moaned as she clung to me like a lifeline, "Fill me up with your fat cock until I'm a fucking wet mess and I pass out. Then I want to wake up with your cock still buried inside of me, filling up my womb with your demonic seed!"
As Patty's moans turned desperate, she started to hump my hand, trying to force my fingers deeper inside of her, "Please don't coddle me, don't worry about breaking me, just keep going until you can't anymore!"
I pulled my fingers out of Patty's pants and held the glistening digits in front of her face, where she didn't even hesitate to lick off her own juices.
"You really would do anything for me, wouldn't you?" I asked, and Patty nodded without hesitation, "Good, that means I have your full consent for the night ahead of us."
Grinning like a cat who caught a canary, I suddenly stood up with Patty craddled in my arms, where she let out a small yelp, "Just make sure you come complain to me when you're not able to walk tomorrow."