Harper has three rules for the summer before senior year:
1. Have Fun
2. Don't get attached to anyone from work or school
3. Forget about ex
After a crash and burn relationship, Harper keeps things casual, which leads to people thinking she's loose, but it's better than having her heart broken again.
New co-worker Lincoln intrigues her but dating him would break her rules. Lincoln is a rich kid with no real world experience and has had no challenges to overcome. He proposes that Harper give him a relationship experience before he goes off to college, and in return their relationship will calm the mean gossip about her. With a team up like this, what could go wrong?