He freezes at Wei Ying's surprise, afraid that it was too distasteful, that Wei Ying would be repulsed by it.

"The book said it was an option," he murmurs, having never really given much thought to other ways to discard it. It seemed very much like it would be a rejection of the act, to do so.

"I can clean my teeth if Wei Ying prefers," he offers, arousal flagging in the wake of his uncertainty.