Is it okay to put suggestive dialougue in YA novels?

I mean someone told me it wasn't but however I've read plenty of YA books including Gossip GIrl and The A-List that do have suggestive dialog and language including stating that someone is having oral so don't get why it won't be okay. I'm asking cause one of my characters are going to be promiscuous and by the end of the series none of them are going to be virgins and I want to put detail in. Granted I know I can't do it in a down and dirty way like a romance novel but more of the line of "She unoned his pants and got on her knees and did what she knows she does best" That's the exact line from a part in my book. Is it apporiate or should I change it?