"Not as easy to make you feel good, huh?" he breathed out, voice husky as he watched Chikusa let go of his arousal to lay his hand over Yamamoto's again. It hadn't really occurred to him, at least in depth, until just now. "Although I guess we can keep kissing-"

He tore through Chikusa's skin.

It was hard to say if he moved his thumb wrong, if Chikusa pressed down too hard with his own hand, or what. It probably didn't matter. All that mattered was that it had happened, that faint feel of resistance against his nail before he realized that his thumb had dipped in far more than it should have against something physical.

Yamamoto stared down for a second, a little bit stunned and somehow still with an erect dick despite himself. "Oh," he said numbly before he laughed again- his incurable habit that popped up during the worst moments most of the time.