Kexing presses his lips together to muffle a groan as he rocks his hips against Xingchen's ass. That heated feeling that turned him on to begin with propels him onward, chasing his pleasure with long, steady thrusts. He savors the sweet friction Xingchen's warm, willing body provides, even if he can't see much more of his lover than where they join. He'd be lying if he said there isn't something wholly erotic in watching that tight entrance stretch and swallow him up. But his hands remain on the young man's hips, fingers caressing the soft skin as if to reassure Xingchen.