"Lie down on the bed," Rias said. "I would normally have insisted on having my first time be on my back, but with your dick being that big, I should probably be on top, at least at first.
Having no problem with that, Mitarai laid down next to her, and she embraced him immediately, kissing him deeply. As their tongues entwined and began to duel for dominance, it occurred to Mitarai that Rias was tasking herself on his lips and tongue and found the idea hot.
Rias Gremory had already spoken of her playing around with her vice president, but it still made the idea more real for him. He cupped her breasts with his hands as she moved to straddle him, sinking his fingers into the soft flesh and groaning at how much he already loved them.
They hung so high on her chest for their size and were so impossibly firm. Mitarai wondered how long they would stay that way, knowing, as he did from the books he read, that devils could live for millennia and look youthful throughout their lives.
As he felt the soft, warm, fleshy orbs, he wondered how it would feel to bury his cock between them again and take the lead this time. He knew she Rias wouldn't mind it anymore, even if she was willing to try it, being too focused on losing her virginity came as a priority, but he hoped that he might get another chance to fuck these tits again.
"Alright," Rias said as she lined herself up with his cock. "This is it."
She still sounded apprehensive, and he caressed her arm softly, giving her a reassuring smile.
"Just go as slowly as you need to," Mitarai said.
"I'll probably be fine," Rias said. "I'm as wet as I physically can be and as a devil, I'm probably just built for this. You're just a lot to take in. Pun not actually intended."
Mitarai sat up and wrapped his arms around her, kissing her tenderly. Rias smiled at him and lowered herself down. The both of them gasped as he slipped inside her. Rias was so surprised at the ease of the penetration that she slipped and took the rest of his huge cock in one long slide.
"Oh fuck!" she cried.
She felt unbelievably good, beyond Mitarai's and possibly all mortal comprehension. She was so hot, so wet, and so fucking tight that Mitarai was blown away immediately.
If he had had any experience at all, he would have known that the way that her perfect pussy was sucking him in wasn't normal by human standards, and he might have been able to withstand it for more than a moment.
As it was, all he could do was bury his face in her neck and groan as he came, filling her with rope after rope of his cum. He collapsed back, taking her with him, and wished that he could curl into a ball or, better yet, climb into a hole in the ground and never come back up.
Takashi Mitarai had cum the second he was buried inside Rias Gremory's pinkish pussy, and he didn't know if he had ever felt like more of a mob loser in his entire life.
"It's okay," Rias said, raking her nails gently along his head.
"It was your first time, and you endured a hell of a lot of buildup before I put you inside me, not to mention that you made me cum harder than I have in my entire life with that hot tongue of yours. You have nothing to be ashamed of honey."
Her words did make him feel better, and he began to stroke her back with his hands, enjoying the feeling of her soft skin under his fingertips.
He kept his eyes closed, just enjoying the feeling of relief and satisfaction that flooded his body as he continued running his hands over Rias.
However, he realized that he could almost see her in his mind, not as though he was imagining her, but as though he truly could see her as driven by his manly instincts. More than that, he could sense her body in a way that he didn't quite understand, feeling spots that he knew would be very sensitive to stimulation, as well as spots that were tense. Bringing his hands up to her shoulders, he started prodding the tense spots there and was quickly rewarded with sighs of pleasure.
"Ah, that feels good," Rias moaned as she felt the tension in her shoulders melt away under his simple touch.
Mitarai opened his eyes and looked down at her, realizing that he could almost see that he had managed to completely relax her slightly tight muscles. He also realized then that he had never softened inside her and flipped her onto her back.
"Ah!" Rias gasped, looking up at him in surprise.
"I know I've technically taken your virginity, but I think I should actually fuck you too," Mitarai said, grinning.
"If you think you can," Rias said challengingly, a grin on her face as well.
Mitarai pulled half of his cock from her clinging depths and thrust back inside hard, making her moan.
Acting on instincts he had never known he had, he began fucking her hard, and when he sensed that there was a very sensitive spot deep inside her that he was just barely missing, he changed his angle and hit it directly, feeling his dick slip inside what felt like a little pocket inside her.
"Ah fuck!" Rias screamed. "Right there!"
He started hitting that spot on every thrust and picked up his pace until he was truly pounding the devil under him.
Rias's breasts rolled and jiggled against his chest as he leaned in, burying his face in the crook of her neck.
His strange new manly instincts hadn't failed him yet, and just as he had been sure that there was a spot deep inside her that he should hit, he was sure that one of her sensitive erogenous zones was there. Bringing his lips to her neck, he began sucking gently on that spot, and her reaction was immediate.
"Oh My Fucking Satan! Mitarai!" Rias squealed at the top of her lungs, her nails raking down his back as pleasure consumed her.
The feeling of her inhumanly tight pussy spasming around his cock was incredible, and he was surprised that he didn't cum again despite his recent orgasm, but Mitarai found that he suddenly had significant control over his pleasure and was able to fuck the screaming vixen through her titanic climax.
"That was...wait...are you still…" Rias panted.
"I'm nowhere near done with you," Mitarai said, his voice deep and rumbling as he looked her right in the eye telling her who was in control here.
Rias stared back at him wide-eyed, looking like she was wondering what kind of monster she had created.
Takashi Mitarai didn't know what had come over him either, but he wasn't about to question it, not when he had far better things to do with his time.
Like fucking Kuoh Academy's big idol, Rias Gremory's brains out.
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"YES, YES, YES, YES!" Rias screamed into the sheets as she came yet again, her voice rough and hoarse from overuse.
She was lying prone on the bed as Mitarai took her from behind, his hips making her wonderfully plump asscheeks jiggle every time his hips smacked it.
Mitarai did not know how long he had been fucking her at this point, though it could easily have been hours from how tired he felt.
The two of them had both cum multiple times, three times for him and countless more for Rias.
She was an exhausted wreck, drenched in sweat from head to toe. It had been a while since he had heard her use a word with more than one syllable, but then, neither of them was very talkative at that moment.
Feeling himself reaching his limit again, Mitarai let go with a roar of her name, filling her tight tunnel with even more of his cum, and collapsed on top of her, barely managing to hold himself up.
He buried his face in her sweat-dampened hair and breathed in her scent as he panted for breath, feeling like that might actually be his limit. As his overused cock finally softened, he rolled over, and she immediately dragged herself over to rest her head on his chest.
"So... fucking… good," she panted and Mitarai closed his eyes, lazily running his fingers through her crimson drenched hair as he waited for sleep to claim him.
"I must say that I didn't expect you to stoop to this level, Rias," a cold, emotionless voice said, shocking him out of his near-sleep state.
Mitarai opened his eyes to see that the curtains around Rias's bed had been thrown open, and a silver-haired woman in a French Maid outfit was glaring down at them.
"Huh?" was the only thought his tired brain managed, before falling asleep completely.
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