It was Koneko Toujou's first time doing a titjob…
Though she had borrowed power from Senjutsu, her current body was unmistakably a glimpse of her future self. Even if it was just a partial level-up, it proved that someday, she'd grow into a woman as voluptuous and alluring as Kuroka.
And using those tempting breasts — boobs meant to seduce a man — for the sake of pleasuring Mitarai for the first time made her deliberately choose the word virgin over simply saying it was her first time. She wanted to arouse him, excite him even more.
And it clearly worked.
Mitarai, visibly stirred, yanked his pants down in one swift motion and immediately thrust his hardened cock right through the opening left by the third unbuttoned clasp of her shirt.
The first and second buttons had already been closed again, meaning the only direct contact his cock had was with the creamy skin of her breasts at the gap of the third button — smeared with thick, warm saliva.
Her breast flesh was soft, yielding, and carried just the right amount of firmness — the kind of body any woman would envy.
"Senpai… your cock is so hot I can feel how much you're turned on by me~!! That makes me really happy I'll hold my tits from underneath like this, so you can move however you like. You can be rough too — I'm a Yokai and a devil, after all, I can handle it~!"
"Then I'll take you up on that. I've been curious about vertical titfucks for a while now."
"Fufu~ So I'm your first? Yay… I stole Senpai's first time."
Her smiling eyes narrowed with joy, but there was a spark of barely restrained lust behind them.
Up until now, almost every first experience Mitarai had was stolen by Rias — his first kiss, his virginity, and even anal sex.
So it meant a lot to Koneko to finally claim one of his "firsts" — even if it was just for a specific act like a vertical titfuck.
His cock slipped back and forth through her pillowy cleavage, which was tightly packed with firm, warm flesh. Slick with her spit and his pre-cum, it left lewd trails between her tits, as if his cock was marking its territory.
Shirone held her heavy breasts up from below while Mitarai grabbed them from the sides to enjoy the sensation.
Treated like nothing more than a living sex toy, Shirone's arousal only deepened. She had once wished to be his pet, even wearing a choker modeled after a black collar…
But now, the desire to be his completely was stronger than ever.
"Senpai's thrusting like a beast… he's fucking my tits like I'm just a cum-dump for him~!! Aahh… I've really become his sex toy now, haven't I?"
She whispered that last part so softly that Mitarai, focused solely on the titfuck, didn't even hear it.
Takashi panted heavily, breathing hot and fast as he slammed his hips forward, bang! bachun! — His cock pounding against her boobs with unrelenting force.
His fingers dug into her breasts so hard that they might leave marks, and even that pain only made Shirone more in love.
~Bang slurp nyupu squishh ~ the obscene wet sounds of his cock grinding between her sweat-slicked, saliva-coated tits echoed in the room, a vulgar rhythm of raw pleasure that stirred the primal instincts of anyone who heard it.
"Ahh the head of your cock's grinding against my tit-flesh so rough~!! That's not good, Senpai… my boobs are supposed to be for breastfeeding babies someday, you know!!!"
"Koneko… your tits feel way too damn good~!"
She had become his personal titfuck toy — a custom-made breast onahole, crafted solely for his pleasure.
Even as his hips moved with the same rhythm as if he were masturbating, the reality of her warm, living flesh around his shaft made the experience infinitely better.
Every time the head of Mitarai's cock struck the back of Shirone's cleavage — the firm chest wall that marked the deepest part of her breasts — a wave of sweet, aching pleasure surged through him.
His expression openly twisted in bliss, and she stared at him like she was drunk on the heat of his lust.
"Senpai, No, Master Please… feel even better using Shirone~!!!! Ahh If you tug on my nipples like toys while you thrust… nn hnn nooo!! My pussy's getting all twitchy again I know I'm just your toy, but I'm getting turned on all on my own~!!"
Mitarai kept fucking her tits without pause, moaning her name, while Shirone gazed up at him with pupils clouded over by raw desire.
At this point, their dynamic resembled something even more intense than a pet and master — more like a submissive slave eagerly serving her owner.
The choker around her neck, which had started as a playful collar, now only deepened that image.
Supporting one of her breasts with one hand, Koneko used her other to rub over her slick slit through her soaked panties. The friction sparked a sweet numbness of pleasure that made her hips tremble.
"Nnn squiishh!!! Just watching Master~! Senpai's sexy thrusting makes me feel so good, I wanna masturbate~~!! Just rubbing over it isn't enough, so... nnn nghh aahh scratching it a little sends jolts through me."
The lewd squelching sounds from between her breasts combined with the naughty wet noises coming from her soaked pussy filled the room with an erotic symphony.
"Koneko... I'm gonna...!"
"Yes yes, I'm at my limit too!! Let's cum together."
The slapping of flesh grew louder, the wet friction of her fingers stirring her insides added to the mix.
Her fingertips grazed her shallow G-spot, mixing her leaking arousal into the motion.
And then — with the tip of his cock swelling tightly within her breasts —
―――Splurttt Spurtt Spluuurttt Spurtttt Spurt Splurt
"I'm cumming I'm cumming, cumming, cummiiiingggg~~~"
As her whole body twitched, hot fluids spurted out from her swollen urethra with a ~whoosh Pyuush~. Koneko's face twisted into an utterly lewd ahegao — one she only ever showed in front of him — as the heat and volume of his cum splattered against the soft flesh of her tits.
More jets of ~Spurt Squishh~ spurted out, his balls desperately emptying their contents to fill the narrow valley between her breasts.
The once sweet, feminine scent of her breasts was quickly drowned out by the strong, masculine stench of Mitarai's cum.
As she felt it pour over her, soaking her, a deep euphoric bliss surged through the Yokai's body, 'I'm his~! Master's property.' She thought.
Undoing the rest of her shirt's buttons, she rubbed his seed over the entirety of her breasts, spreading the scent and warmth across her skin like perfume.
Once the smell had settled in, she scooped up the cum with her fingers and guided it to her mouth, swallowing it down eagerly with ~Gulp Gulp~.
"Mmmph~ Master's semen is so delicious~ Ahhn~ Slurp~ Sllluuuurrrrp~"
"Damn… Drinking cum with that kind of face is so fucking hot… I can't believe this is the same Shirone known for being cool."
Koneko was the school's mascot, famous for her icy demeanor. But the expression she wore now—drowning in pleasure—was anything but cool.
"Hey, Senpai~ Next, I wanna use my pussy for sex~!!" She spread her legs wide, presenting her dripping slit.
Her naughty entrance, fitting for her small frame, pulsed open and closed, enticing his cock to claim it.
"You little bitch in heat. Seriously, when you're like this, you're a completely different person—even more insatiable than I am."
Mitarai himself had noticed his own lust growing day by day. But Koneko's hunger might just rival his.
Though her body wasn't fully voluptuous, the instincts of a female who had known pleasure now overrode her reason, driving her to crave motherhood.
Once like this, Shirone could think of nothing but seducing her master lewdly and begging for his seed.
Masturbation could sate her to an extent, but if Mitarai was free, she'd contact him regardless of the hour. In many ways, Rias and the others knew better than to underestimate Shirone.
In the end, the two continued fucking until they collapsed from exhaustion, leaving them utterly useless for school the next day.
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