"Uuu... no, be gentle! Don't ruin the clothes!"
Rin Ito dragged Sajuna to the parking lot. He opened the car door, reclined the seat to a flat position, and pulled Sajuna inside.
Sajuna's mouth was incredibly stubborn when it came to speaking, but her other mouth was much softer than her talking mouth, and her body was much more honest than her words.
"W-What are you trying to do here!?" Crossing her arms to cover her meager chest, Sajuna kept glancing out the car window.
Even though she knew the windows had privacy tinting and no one could see inside, the idea of being naked with pedestrians just a transparent pane of glass away still made her heart race uncontrollably.
"Pervert... This is a parking lot. What are you doing?"
"Who was it that passed out just from watching Marin lick my fingers in a parking lot?"
"...." Sajuna's face burned red, entirely unable to retort. Back in the convention parking lot, she had squirted just by watching Marin suck Rin Ito's fingers.
Of course, Sajuna had no idea that Kaede had caused it; she genuinely thought her body was just too weak and sensitive.
"Let go of your hands."
"Hmph... pervert." After muttering a curse under her breath, Sajuna lowered her hands, revealing the perverted lingerie she had worn during the previous group shoot... Orie's condition for making her cosplay costume was that she had to wear this lingerie while cosplaying.
Framed by the delicate patterns of the sheer lingerie, the three swollen, tender peaks looked exceptionally adorable.
"Don't ruin the lingerie Orie made..." After untying the strings and taking the lingerie off, Sajuna consciously reached toward Rin Ito's waist, unbuttoned his pants, then turned around, stuck her ass up, and untied the strings of her own panties.
"Tch, tch, tch... You're already this wet? You call me a pervert, but you've actually been looking forward to this, haven't you?"
"I-It's all your fault! You've been so busy with Baumkuchen Studio lately," Sajuna mumbled, burying her face while sticking her ass in the air. "J-Just using my hands wasn't enough. H-Hurry up."
However, Rin Ito didn't toy with Sajuna's ass. Instead, he pulled her out of the OR2 posture and made her face him properly, leaving her shameful expression nowhere to hide.
Rin Ito knelt on both sides of Sajuna's lower abdomen, hovering slightly above her. With his 'gun' pointed directly at her chin, he placed his hands on her slightly bony ribcage.
His palms pressed inwards, squeezing towards the center.
There's a saying: cleavage is like time—if you squeeze hard enough, you'll always find some.
But... there was none.
Rin Ito squeezed, but there was still none.
Even though his palms pushed her shallow breasts inward, they were nowhere near forming a cleavage; her tiny breasts couldn't even touch each other.
"...Just laugh if you want to laugh!"
Although Rin Ito really wanted to laugh, he held it in. Previously, Sajuna had tried to serve him with her chest out of sheer embarrassment, but it ended up feeling like she was trying to file him down to death with a rasp.
Sajuna wasn't rubbing him with her meager amount of soft flesh; she was pressing hard with her chest, making him feel the hard bone of her ribs. She almost filed him completely soft back then!
Now, with Rin Ito taking the lead, it was much better. Although her breasts couldn't touch each other, Rin Ito's fully aroused state bridged the gap between them.
While the enveloping sensation couldn't even begin to compare to Shinju's massive breasts, toying with a petite, flat chest was also uniquely fun, especially seeing Sajuna's incredibly shy expression.
Squeezing her breasts together with his palms and rubbing her tips with his thumbs, Rin Ito felt like he was holding a game controller!
He thrust his hips forward, bumping against Sajuna's soft chin and occasionally lifting his waist to rub against her delicate lips. Doing it himself felt vastly better than being filed like wood.
To restore Sajuna's confidence, Rin Ito didn't hold back. He intentionally relaxed his body and sped up. Ten minutes later, Rin Ito firmly pinched her tips and simultaneously thrust deep into Sajuna's mouth.
"Guh-uu!!! Cough, cough, cough!!!" Sajuna lifted her face and opened her mouth, but Rin Ito came too hard and too fast, and Sajuna's position was awkward. As she swallowed, it sprayed directly out of her nose.
For a moment, she could only gasp for air, her lungs filling with the heavy scent of Rin Ito, while the portion she couldn't swallow splashed entirely across her chest.
"A girl's body is a treasure. Even a flat chest has its own unique value. Even with an absolute washboard like you, I can still cum just fine!"
Rin Ito rubbed his still-trembling, scalding length against her, completely smearing Sajuna's flat chest until it was thoroughly sticky and messy.
Recovering her breath, Sajuna looked at Rin Ito's still-trembling, scalding length right before her eyes, and then at his utterly unapologetic, self-righteous expression, completely unsure of what face she should make.
Sajuna knew Rin Ito was doing this to comfort her, but this method was just...
"If once isn't enough, we can go again," Rin Ito said with a wicked smile.
"No need! Let's head back quickly so Shinju and Marin don't have to wait too long... Hmph, pervert." Sajuna looked down at her sticky chest, immediately sat up, and reached for the tissues nearby.
But before she could wipe herself, Rin Ito stopped her. Such nutritious stuff might stimulate breast growth, you know.
"...."
"Besides, the Black Lily Shion cosplay costume is very thick, so this little bit won't soak through... Who knows, it might trigger a second growth spurt?"
"..."
Sajuna obviously knew Rin Ito's stamina. The fact that he came so quickly from her flat chest was purely to restore her confidence, proving that her flat chest had its own charm and wasn't inferior to Shinju's.
Although Sajuna's mouth remained stubborn, she was genuinely touched internally. But right now... Give it back! Give my emotional moment back!
Rin Ito placed the custom lingerie Orie made against Sajuna's chest. The sheer fabric was instantly soaked through. The delicate peaks, having been pinched and twisted by Rin Ito earlier, were slightly swollen, so Rin Ito had to use a bit of force to pop them through the holes in the lingerie.
The same went for the hole in the panties. Even though Rin Ito hadn't bothered her nether regions, her flat chest was equally sensitive. Once her body got aroused, it didn't matter if Rin Ito had directly stimulated her down there or not.
After helping Sajuna snap the 'mortise and tenon' lingerie into place, Rin Ito handed her the Black Lily Shion cosplay costume.
"Hurry up and put it on. Don't keep Shinju waiting."
"..."
The corner of Sajuna's mouth twitched. She hesitated for a good while before taking the clothes... She didn't actually mind having her chest smeared; she just didn't want to stain the cosplay costume and trample on Orie's hard work.
However, on second thought, if Orie found out her cosplay costume got stained by his cum, she'd probably be even happier.
Besides, she had seen online that applying it to the face as a mask could supposedly nourish the skin and provide beauty benefits. While skincare wasn't breast enlargement... what if?
What if it actually could make them grow?
Thinking of this, Sajuna took a few deep breaths and pulled the deep purple, military-style dress over her body.
Regarding this, Sajuna only had one singular feeling.
"So gross!"