Katherine Heigl has a steamy moment in Knocked Up (2007). She doesn’t get fully nude, but she looks undeniably hot in her underwear during the sex scene. The movie also features adult star Nautica Thorn, who goes fully naked and shows off her boobs without hesitation. Stormy Daniels appears too, flashing her tits in another scene that adds to the wild vibe of the film. And of course, Leslie Mann is part of the cast, rounding out the mix of familiar faces in this comedy.
