[ Derek is passive, when it comes to the kiss. He doesn't shoot Kavinsky down or turn him away, but he doesn't put the same raw energy into it that he has the last few times they've hooked up. He parts his lips, gives Kavinsky access to his tongue, tilts his chin up to let Kavinsky do what he likes to him - but it's very disconnected. When they break away, Derek still just seems disappointed with where this is going.

He doesn't want to contribute to Kavinsky's loneliness, doesn't want to make him go through another rejection so soon after losing another sub, but with how often they've skirted the line of genuinely giving at least a tenth of a fuck about one another, Derek feels pretty guilty about all the rough, regrettable hookups and stupid choices they've both made. Feels like they could fall back into a pretty toxic pattern while Kavinsky's at a low point.

He wants to help Kavinsky feel better. But - ]

... if you're just going to self-destruct when I leave, there's no point in doing this. I don't want to just - be a distraction. I want to help.