West Side Story:
I happen to adore this musical. And the casting that was done was wonderful. Honestly, can you have anyone BUT Santana to be Anita?
My only issue was how they staged "America." They staged it like the movie (where there are guys). The additions of the other gang was a nice touch, though.
This is how the number was originally intended. (I happen to LOVE Karen Olivo in this!)
Now, onto the sex.
Unlike the episode about drinking, I liked how they handled this. It wasn't rushed, or forced. It seemed like a natural progression. And it was open ended. For all we know they never went all the way. And honestly, if all Kurt and Blaine got to was heavy petting, it would not surprise me at all.