Nathan Witte in The Perfect Pickup (2020)

The Canadian comedy The Perfect Pickup tells the story of four life-long friends who set out to find the perfect way to romance women after failing miserably for years. Nathan Witte plays one of the friends, Corey, who enjoys admiring his own butt. He's shown naked doing some ironing early in the film as the reflection of his butt catches his attention. Later, he compliments his butt while in the middle of sex during a flashback. Nathan showed rear nudity for both scenes.