No Strings Attached (2011)
Emma is a busy doctor who sets up a seemingly perfect arrangement when she offers her best friend Adam a relationship with one rule: No strings attached. But when a fling becomes a thing, can sex friends stay best friends? parent child relationship, casual meeting, sexual humor, student of medicine, friends, open relationship, best friend, valentine's day, casual sex, friends in love, duringcreditsstinger, fling, father son conflict
ETC.
