Wei Wuxian's brow lifts. "Only with this?" He has no intention of allowing Lan Wangji to sleep before he has felt such ecstacies, but of course Lan Wangji would claim to be alright. Stubborn as he is, he could convince himself it was true, too, but Wei Wuxian won't let him.

Even if he is a bit unsure, yet. Not that he wants to - that he knows quite how. "It felt so good, Lan Zhan," he murmurs, catching one of his hands to bring to his mouth. Curious, Wei Wuxian licks a long strip along his thumb. "Was it difficult to figure out?" he asks, pulling his thumb in its entirety into his mouth to suck on.