Julianne Nicholson making out with a guy as he helps her undress, her undergarments coming off to expose her left breast before she presses it against him as she moves in to kiss him some more...

Naomi Watts - Infinite Storm http://www.imdb.com/name/nm0915208/

Brie Larson - The Trouble With Bliss

Natalie Portman - Closer

A bare breasted Yootha gives a topless Gaite Jansen a sponge bath.

Maria Bello dropping out of her jeans to reveal her ass in a thong, and then joining a guy in bed where he grabs and exposes her right breast before they have sex. See her in another sequence...