[he can't keep totally still, hips rocking in insistent little pushes, helping him settle into the heat of Wei Wuxian's body. it's so slow; so difficult not to go faster, rougher, to keep letting Wei Wuxian settle himself. Lan Wangji's legs spread beneath him, tiny sounds wrung out of him at every gentle brush of fur over his thighs, and he ducks his head to bite Wei Wuxian's shoulder, teeth breaking the skin just a little]