Time for some shower sex! And an odd thought!

"...lean forward against the shower wall," Issei ordered her, and she beamed as she obliged him immediately.

"Mmnh, yes Master," she purred, pressing her face and hands against the slick tile as she wiggled her rear. Issei took a moment to admire it. He might be a tits guy, but damn, if boobs weren't so perfect to his perverted mind, he would be considering becoming an ass man right now.

He lined his erection up with her slippery cunt, and didn't hesitate to thrust into her. He moaned as his cock was once again enveloped in the tight, velvety embrace of of her nether regions. "So good," he muttered, putting his hands on her ass and squeezing it.

"Unh... yes, it is, Master..." Rias crooned, pressing back against him to facilitate more pleasure. "Please, use me, take me, make me yours..."

Issei was all too happy to oblige. It honestly amazed him just how submissive she was. He could do whatever he liked to her, and she would thank him for the opportunity to be his toy. Not that he ever intended to mistreat her, or forget she was a thinking person, but he wasn't above letting her set her personhood aside for sexual moments like this. It was incredible, just how comfortable he was, having his way with her. It certainly helped that she loved it when he did too, but still. She was a perfect sex ****, because she wanted to be a sex ****. There was no chance of her betraying him...

He then blinked at that last thought, though he didn't stop going. "Where did that last thought come from?" he thought in his head, though he didn't stop thrusting into Rias, though he did slow down a bit, making her whimper a little. He ultimately pushed the thought aside, deciding he would work it out later, and resumed, thrusting even harder into her. "I wish you would cum when I did..." he panted out.

"Mmmnh, yes Master," she nodded, lightly snapping her fingers against the wall. Just in time too, because his manhood started to throb within her.

"Ungh!" he grunted as they reached their climaxes, Rias aided by her own magic, and giving a little moan of her own as his essence flowed right into her core.

"Mmmnh... so good, Master..." she crooned. He pulled out, panting.

"...we should finish cleaning up," he panted, and she nodded.