I don't think a Malec sex scene was that necessary in yesterday's ep. I understand that people are disappointed because the promo's made it seem like there would be and it seems "unfair" because the straights do get their sex scenes but let's not be perverts. Magnus and Alec have only gone on two dates and Alec has never been with anyone else before, so why rush it really? To be honest, I hope they didn't have sex and Magnus stopped him, because it seemed like Magnus himself wasn't entirely sure yet and Alec needs to chill, 'cuz I feel like he wants to please Magnus too much.