10 000 years of repression mean that Shen Wei's just about ready to explode when Zhao Yunlan first touches him; meanwhile, Zhao Yunlan's been improving his sex skills by getting around a lot, so it is no trouble for him at all to fuck Shen Wei until he's overstimulated and incoherent. Bonus points if Shen Wei comes so hard at the end (his idk tenth orgasm of the night?) that he's knocked out cold.