In other words, she had witnessed him having sex with Sona and the others. That was why she couldn't look him in the eye. Understanding this, Mitarai resolved to regain her trust somehow and, for the time being, made a conscious effort to prioritize talking to her.
Perhaps finding her behavior suspicious, the boy who had become awkward around her from the day after she witnessed their lovemaking began to treat her with gentleness.
While Rossweisse felt grateful, she also began to feel disheartened, wondering if she lacked any feminine charm. When Takashi spoke to her, he properly looked her in the eyes, but she knew all too well that the male students at the academy had their gazes glued to her chest and butt.
That was precisely why she felt an inexplicable dissatisfaction that he didn't look at her that way.
And finally, tonight, she ended up sneaking into his bed.
Because of the worry he had caused Rossweisse, Mitarai had since restrained himself, abstaining from his late-night sexual activities.
Instead, he vented his accumulated libido during the daytime at school, so it wasn't particularly difficult. It had been decided on the first day of their cohabitation that Mitarai would sleep in the bedroom, while Rossweisse would lay out her futon in the living room.
Just as he thought it was a good time to sleep and slipped under his covers, the bedroom door suddenly burst open, making Mitarai jolt. He turned to see who it was, and there stood Rossweisse, her cheeks flushed apple-red.
"Eh, Rossweisse-san...?"
"...It's your fault, Takashi-kun. After being made to see something like that, I can't hold back any longer."
She straddled him as he lay on his futon, her stunningly beautiful face—the very one he'd been captivated by—looming close. She forcefully stole his lips.
"Nnn... Fuh... Fufu, so this is a kiss... I've lived a long time, but this isn't a bad feeling... No, honestly, I want to do it more. So... slurp..."
She muttered something under her breath, then immediately sealed his lips again. Her sweet breath tickled his skin.
After that chaste, childlike pressing of lips, her tongue suddenly slithered wetly inside, lapping around his mouth with lewd sounds. Mitarai, initially wide-eyed at the sudden turn of events, came to his senses and reached up to her shoulders, pulling her into an embrace. He closed his eyes and savored the sensation of her lips.
He had no idea why she was doing this, but when a prime delicacy presented itself to him, Mitarai's nature was to devour it without hesitation.
He trapped her entwining tongue between his lips, stroking it as he stole her saliva. He swallowed audibly, and as thanks for the stolen saliva, he offered his own saliva as a gift.
After a brief internal struggle, Rossweisse swallowed it down. Having drunk the saliva of the man she'd been obsessing over, she pulled her lips away and let out a hot haaah.... It was a gesture so perfectly seductive that he found himself staring at her in a daze.
"Umm... What's gotten into you all of a sudden, Rossweisse-san?"
"You realized I followed you that night, didn't you, Takashi-kun?"
"Y-yeah. You probably know since you saw, but Sona and the others told me I was being followed."
"At that time, I saw your c-cock, and I haven't been able to get it out of my head. So, just to get a reaction, I walked around the house in a slightly lewd outfit, but you still didn't really look at my body. All that pent-up frustration just exploded, and I ended up... It's disgusting, isn't it? ...Fortunately, Rias-san is paying me quite generously, so I'll move out of this house tomorrow. Thank you for taking care of me."
Having unilaterally reached that conclusion, Rossweisse turned to leave, shoulders slumped. Mitarai grabbed her hand and, using the momentum, pushed her down onto the futon.
"Kyaa!? Th-that's dangerous. Are you hurt?"
"...You're the one worrying about getting hurt."
"I'm fine. I kept quiet about it, but I'm not actually human. I'm confident in my body's sturdiness."
"I-is that so... No, that's not the point! The reason I didn't look at you, Rossweisse-san, in that way isn't that you lack charm. As you know, my sex drive is strong, and I held back because I was afraid I'd pounce on you if I let myself see you through those eyes. So it's absolutely not that you lack charm. On the contrary, you are incredibly erotic!"
Mitarai fervently argued with words that were anything but smooth.
Back when she served under Odin, she would have been exasperated and ignored him.
But now, driven by her own pent-up, directionless lust, just like Mitarai, his words, which seemed to praise her, made her heart pound.
So much so that her perception of him shifted from just a housemate she'd been curious about, to someone she had fallen for.
Her cheeks flushed, but this time from something other than embarrassment, and she gazed intently at him.
"In that case... please do to me what you did with Sona-san and the others. Brand me as yours."
"Does that mean you're okay with becoming mine? I have a harem, and I'm involved with multiple women. If you're going to run, now's the time. If you don't run now, I won't let you go until death."
"...It's fine. You're the one who took me in when I had nowhere to go. I offer you my everything. So please, take me."
"I understand... No, got it. I won't hold back anymore."
He used the rough, masculine speech he reserved only for the women who belonged to him. It was hard to imagine coming from his otherwise unremarkable, docile appearance.
He leaned down and gave Rossweisse, who lay on the futon looking up at him with teary, lust-filled eyes, a light kiss. Then he touched the lush, voluminous breasts pushing up against her nightclothes.
"Nnn... Ah... It feels so good... Being touched by a man feels this amazing..."
"Wait... Could it be that Rossweisse is inexperienced?"
"Yes, I am. Despite having lived so long, not only have I never had sex, I've never even been in a relationship with a man... D-do you find it off-putting after all? A woman whose only worth is her virginity?"
"As if I'd be put off. Just thinking that a woman like Rossweisse's first time will be with me gets me excited. Come on, you touch me too, not just me touching you. You've been thinking about it constantly in your head, right?"
Taking her hand, he guided it to the sweetly half-erect cock straining painfully inside his pants.
She flinched but, fearfully, began touching it with her hand, as if feeling out its shape.
Though her heart was pounding at touching a man's most precious organ for the first time, she quickly became completely absorbed in it.
Her clumsy touching brought only a sweet, tingling sensation that was maddeningly tantalizing. To dispel that, Mitarai likewise began groping Rossweisse's lush tits, kneading them with his fingers.
Her breasts, appropriately large for a mature woman, yielded under his fingers, sinking in and changing shape. They were soft and fluffy, and just touching them sent pleasure signals to his brain, making him feel blissful.
Just as all men are said to be boob-aliens, so too was Mitarai, and while he didn't discriminate by size, when they were large, he enjoyed playing with them with obvious delight.
He grabbed handfuls, squeezed them with all five fingers, and ground his thumb pads against the erect nubs that pushed back assertively against his palms. Rossweisse reacted exquisitely to every touch, letting out sweet moans.
-----------------------
Advanced 30 chapters available at: ko-fi.com/ereh_kun
Advanced 30 chapters available at: patreon.com/cw/Pinto_Lemons