5. 'The Vampire Diaries': Damon and Elena (Season 4, Episode 7)
It was the moment Delena fans had been waiting for: Damon and Elena finally got it on. And, after a few fake-outs, it was the real deal. The Vampire Diaries duo – a real-life couple – have done a lot of flirting over the past four seasons, despite Elena dating Damon's brother Stefan. But after revealing she's single (again), Elena and Damon shared a drink, a romantic dance in front of the fireplace and some seriously steamy vamp-on-vamp sex. It was a slow build to this moment, starting with that motel kiss last season – or, some would argue, the series' very first episode. Now the question is: is it true love, or is Elena falling victim to Damon's mind games?