The Pest (1997)

The main character's bare butt is shown at least once when at his gf's place his pants catch on fire and he runs out of a room with his whole backside showing

Many women in bikinis, Thongs skimpy outfits some with very large amounts of cleavage showing

The opening scene approx 1:15 into it the main male character is in the shower singing/rapping to the camera the keep cutting to an overhead shot where he looks to be naked except for soap suds around his privates(which looks more like shaving cream in reality) (he prob actually had underwear on under the soap suds) but everything else is visible from the front scene lasts about 1 min

In one scene pest is discussing the terms of his contract in Gustav's home. Throughout this scene a portrait of a naked woman can be seen in the background. Approx 24:40 in.

Later Pest is being chased through a private club by Gustav. When they enter a women's changing room, one woman is wearing only a thong with full backside showing. It happens at 1:03:11

Many dirty / suggestive jokes