I think it's safe to say everyone is coming along nicely. So sheer it's almost transparent. So transparent you can't tell it's there. The thing about movies like these, that bother to try to have a plot, is that they're relatively good fun for both sexes. Guys being guys, their fun is over relatively quickly.
Girls being girls, the fun is in critiquing the plot and the positions.
Though anything is possible, I don't think anyone's idea of great sex takes place lying down on your side in a locker room shower. ThanKs thE men of the aforementioned fraternity for their assistance in her research.