Lan Zhan reaches deeper, and Wei Wuxian winces for the sudden stretch, his mouth open to beg for a respite when pleasure bursts inside of him like a firework. He cries out, cock leaping in Lan Zhan's hand, his hands clutching at his shoulders for an anchor. "This is..." he starts, trembling all over from the short burst and staring at Lan Zhan with wide eyes. "Lan Zhan, do it again."