In your opinion what was the best first kiss (TV or film - not you and Sister Thomas behind the bike-shed, please) you've seen? Try and forget OTPness for a moment and instead focus on the acting, writing etc. of the moment.
Once you've thought of that, how about the best kiss, first or otherwise, between fictional TV or film characters? And, if it's not the same, the hottest kiss?
If I get enough suggestions and OTPness hasn't run amok I'll see if I can track down some video clips and we'll have a poll... Sometimes you need a bit of shallow in your life.
(Obviously, we're talking female/female kisses)