Léa Seydoux of Blue Is the Warmest Color fame making out with a guy on the grassy banks of a river as he lowers her top to expose her breasts. We then see her standing up with her shirt back on but...

Sigourney Weaver - Galaxy Quest

Sweet young Jaimie Alexander gets rid of that confining, pesky underwear to show slight slivers of T&A having sex in the car.

Dakota Johnson kissing a guy in a bedroom before he takes her shirt off to reveal her bra, and then kneels in front of her to pull her pants down. The guy then slides her panties to the floor to give us...

Saralisa Volm - Hotel Desire

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