[kisses him again, hot and wanting, before he reaches back to pull his tails out of the way to make it easier for both of them. it's obvious that he's done some research, with how he spreads his legs wide and tries to relax, intellectually knowing what comes next. when he pushes back onto Lan Wangji's cock, though, pressing just the tip in, he is overwhelmed; not just with how sharp it is, but with how his whole body rings with it, a wave of sensations he's never felt before rushing through him]