Wei Wuxian truly doesn't wish to, but Lan Wangji is persuasive, particularly when he has his hands on him. He tries for a small thing, a clearing of his clogged throat followed by a delicate cough, but from the first instant he tries pushing air through his lungs Wei Wuxian begins coughing violently, spasms wracking his chest until he throws both hands over it as if to hold them inside. Aiya, it hurts.