[Kazu just can't take this. He's not used to this body, these sensations, but it's not even that. It's Ikki, and he doesn't even want to go into why Ikki can just shove him to the floor and do whatever the fuck he wants and make Kazu like it]
[and when ikki adds a second finger he just can't take it anymore. He gasps sharply, loudly, hips jerking]