Dead Ink (2010)

In the first segment, a woman takes off her clothes to take a bath. Full frontal nudity. Then full nudity as she stands up after her bath and dries herself, and looks at herself in the mirror.

In the second segment, a woman's breasts are seen as she changes her top. There are also numerous closeup shots of her buttcheeks throughout (she is wearing thong-like underwear).

In the fourth segment, a woman's breasts are seen when she takes off her clothes and takes a shower.

Bonus: in one of the extra segments on the DVD special features (arguably the only way to see the film), a woman's breasts are seen when she is taking a shower, with multiple closeups. She is seen nude from behind through the shower door. Later in the episode, she is seen topless again, bound and gagged on a chair.