Wei Wuxian face blanks with surprise. He knows mouths can go many places, but even there? Still, the strangeness of the thought is not the reason he balks. Whatever it feels like, it surely wouldn't feel as nice for Lan Zhan, still doing all the work when they could do things that make them both feel good. Things that make his blood run hot and fast, excited and apprehensive all at once.

He lifts up on his elbows, cocking his head. "Does Lan Zhan want to put himself there?" he asks, just as Lan Zhan, finding it a little startling to say aloud. "Do you want to put your cock inside me tonight?"