It changes anybody forever, losing their virginity, but obviously Bella, who’s anticipated it for so long, is going to come out a different person. To me, it wasn’t so much about the act but about the whole experience, and that the more potent expression of that was looking at yourself in the mirror and realizing, “I am the person who’s had sex with that person,” and treasuring each moment that will now become a part of who you are. And you have to make it funny because sex is funny, and the anticipation before the first time you do it has some humor, and because you know there’s been such tension, you can play with audience’s expectations, like, “Oh my God, that was it?” And you get more sex later, and then you get even more when they have sex again.
That’s Breaking Dawn director Bill Condon on the sex in the Twilight vampire series’ fourth film.