Xichen hums softly around him, pulls back when he glances up and sees that Jiang Cheng is trying to hold himself back. "I want to hear you, a-Cheng," he says, firm and gentle all the same before he takes him in his mouth again.

It's been a long time since he's done this, but Xichen pushes any worry on the matter of skill out of his mind. Focuses on taking more of Jiang Cheng's cock into his mouth as he presses his hips down into the mattress to keep him from bucking up and choking him.