under the bedclothes with her

I doubt whether his parents were ever as oblivious as we liked to think. I know they were rarely as sound asleep as Chuck used to say they were, and more than once I'd swear I heard voices from their room as we crept ever so quietly up the stairs and tumbled into his bedroom... And naturally, his bed. Once we were there, though... And especially once we were under the covers, or I was under them at least, I really didn't give a damn who knew. Because I got what I wanted, and so did Chuck. In fact, sometimes I think we both got more than we expected. like the first time he....

Well, let this movie tell the rest of that story....