One character is known to be a womanizer and one who "sleeps around" but nothing is shown. A couple of times, the character looks at the butts of certain women and the camera pans to their behind as well (they're fully clothed) -- this is done in the movie to suggest the kind of person he is.
Pre-marital sex is implied on a few occasions but nothing is shown
Poster of nude woman, breasts showing, features in the background of one part of the movie for lengthy period