Brie Larson - Tanner Hall

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...

Hera Hilmar - An Ordinary Man

Juno Temple - Sin City - A Dame to Kill For

Gillian Anderson showing both breasts during a nude sex scene with a guy in bed, showing hard nipples while they have sex and while lying on her back afterward.

Natalie Portman - Annihilation http://www.imdb.com/name/nm0000204/