His tone is gentle when he realized what he just did.

"Wei Wuxian, have you done? You shouldn't have drink that." Then he caught himself. "I drank a tea that said Joy on it. I thought it was a label or brand of the tea. However, I'm starting to suspect drinking them effect the mood."

Still, he is glad that he's being honest and he wasn't ignoring him as he usually does. He didn't push him away when he shamelessly grind against him for relief.

"Wei Ying, I'll be happy to continue this further, but it's better if we get some privacy. Out here, someone can see us. Let's try to get out of the pool first."

But that means letting go of him, and Wei Ying has to suffer from the distance. "Come on, let's go." And Lan Wangji climbs out of the jacuzzi.