Pleasuring Lan Zhan is a bit of a battle, though most of the battle occurs within Lan Zhan himself. He'll moan like the dying if Wei Wuxian stops, just as he will if Wei Wuxian continues, his body still so unused to pleasure that it isn't sure if it should stay, strike, or run. Wei Wuxian tights his hold on his hand as he sinks lower, letting Lan Zhan slide along the generous flat of his tongue.