Lan Wangji squeezes Wei Ying's hand again before pressing in slowly but steadily, all the way up to the second knuckle as he keeps his head moving around him.

He is incredibly tight and warm, so tight that he is startled he himself was able to take two fingers given his capacity to relax. He keeps his mouth suctioned tight but moves slowly, unsure if overstimulation would be a negative or a positive but wanting to take his queue from Wei Ying.