Vanilla often doesn't do much for me, but this kiss rocked my world.
It's hot, but the real key here is the emotional investment I have in these two. I've noticed lately that a really well-written vanilla romance can get me aroused even when it's full of sexual acts I often find bland. By contrast, the kinkiest scenes leave me cold if there's no context. It's part of what's developed since I stopped being aroused by the mere transgressive presence of kinky sex. It's a lesson I've been trying to keep in mind lately. Sex needs context and a story to mean something.
I watched this kiss about four times when I saw this episode. Its power reminded me that awareness of human emotion is always the key to appreciating what's going on physically.