Bare breasts can be seen when Ox rips the girls bikini's off during the mud wrestle scene.
A man and woman play a game which is clearly flirty and then end the scene with them kissing. The next scene, it is implied that a woman and man made love in a box as the woman exits the box in her lingerie seen on top of a man and is moaning and the man says "well that was interesting".
While John (Bill Murray) and Stella (P. J. Soles) are in a room, we see her remove her lingerie to reveal her breasts and abdomen. John jumps on her and "humps" her while she moans. At one point, Stella's pubic hair may be seen while she is lying on the bed with John on top of her.
At 50:34 An "officer" is seen watching naked women showering with a telescope. The women can be seen showering and rubbing soap on their breasts. Full frontal nudity is shown.
Most of the scenes where nudity is shown is in the extended cut.
A man walks into his house and is greeted by his girlfriend who wears an unbuttoned shirt which briefly exposes her breasts.
During a strip club scene, a couple of the waitresses have no tops and there is a wrestling match between a man and multiple woman in the mud.