No Strings Attached (2011)

Genre: Comedy | Romance
Runtime: 108 min
User Rating: 6.2/10 (18,574 votes)
IMDB Link: http://imdb.com/title/tt1411238/

PLOT MOVIE:
A guy and girl try to keep their relationship strictly physical, but it's not long before they learn that they want something more. 

Part 1

Part 2