Calling All New Adult (NA) Writers - Opinions Needed

I know some of you - especially the girls over at NA Alley - have gotten into this genre, and I was wondering if any of you could offer Kyra Lennon and I some opinions, please.

As you may - or may not - know, Kyra ans I are currently co-writing a NA romance about best friends in their first acting job out of Uni and the experiences they have.

We recently got onto the subject of sex scenes, and wondered what the precedent for those type of scenes in NA fiction is. Whenever I've written erotic fiction it's been pretty graphic, and purely erotica. I don't think we're 'allowed' to go that far, but we have no real insight into what is accepted. Would it be the same as in romance novels or toned down for NA stories?

Any thoughts, opinions and experiences of writing sex scenes in NA would be most welcome.

Thanks.