"...You don't have to restrain yourself," he murmurs quietly against her skin as he lets his lips trail down further once releasing the skin at her throat. And normally, he'd never be able to say any of this even if it were true ( and it's so very true right now, in particular ) but there's just something driving him in this that it's quickly becoming that lust is directing him far more than he cares to admit rather than duty.

"...If you like it, I want to know." He should feel guilty—he knows he should feel guilty —and that he will later is a given but for now none of that is able to even brush upon inhibiting from his actions, especially not when his fingers run along her between her legs and pick up on that temperature and wetness.

So no, she doesn't have to keep herself quiet, he wants to hear more of her, wants to hear as well as feel and see her enjoying it and even as he sinks his fingers up into her, indulging to follow the source of that heat and fluid, he grimaces just a little at the feeling it sends through him, his other hand moving up to clutch at one of her breasts while bringing his mouth to suck at the erect nipple.

Hijikata and Souji are going to kill him for this, but he's not sure if he can stand to care by now even if they weren't doing this for a valid reason. Or, no, he cares but he wants her far more than he cares about their reactions. They don't have to know, do they?

It's a slow and gentle movement that his fingers sink a little deeper into her, obtaining a pattern of pulling back and then pushing in again to go just a little further each time,all the while he drags his thumb against her and forward to seek out her clit. Just the way she's responding has made him hard and the thought of getting to have her react more is just too tempting not to indulge in by continuing.

( they don't ever have to know. )