As other reviewers have pointed out the sex did, one time, get a little rough. That said, my wife and I enjoyed it very much. It was at times very funny. My wife likes the idea of role playing and this movie fit the bill for her. This movie isn’t for everyone but we liked it.
We got this movie, thinking it would be a good watch, because of the doctor-patient angle. Kind of like role-play. There was no special descriptions or warnings about the type of sex with this movie, however, when we started watching it, not only was the whole set-up completely cheesy and poorly executed, the sex got way disrepectful and rougher than we anticipated, given how it was advertised. One of the guys actually spit in the woman's face while he was doing her, which I found repulsive, as did my boyfriend. We watched a few more seconds and realized we had gotten a movie that did not fit the description given.
My warning is that if you are not into porn that disrepects women and spitting, don't get sucked in by the fun title and innocent enough looking plot.