there are 2 "models" that look much like strippers at a bar playing pool (there is a massive amount of cleavage as well as torso and thigh) these girls are shown several times in various very revealing outfits

A computer screen is shown with porn pictures on it - at least bare buttocks is shown - the scene is short but there may have been other possible nudity shown before the guy was interrupted at work while viewing this material (the interruption involved the previously mentioned "models" above in skimpy attire)

a man talks about having cheated with 2 other women simultaneously, a woman (the mans wife) is shown in bed with a man asking if he really wants a baby, a man continues on cheating and is shown in the background at one point with the 2 women in a slave/master situation (the background is blurred) then this is somewhat shown again (the women in leather outfits with (paintball) guns and the man in his boxers chained to a wall)

the cheating man's wife shows quite a bit of cleavage in various parts of the movie

other various discussions of cheating take place throughout the movie including lying about cheating