Karina, Luke and their two good friend Stefan and Hannah hang out by the pool. When Karina tells Stefan and Hannah that she and Luke have decided to be open about their sexual histories, Stefan and Hannah have some words of caution for her.

Karina runs into an old fling while grabbing a coffee with Luke. Is he ready to dive into Karina's past?

Luke, Karina, Stefan and Hannah are eating at a taco truck when they're approached by a guy who turns out to have dated Luke's ex, Penny, who has a very voyeuristic kink.

Hannah drops by Karina's house on the way home, the morning after a hook up. Hannah tells her all about the cute Tinder goth guy who had a very specific request. When Luke arrives home after a long day at work, he isn't quite ready for another one of Karina's sex stories.

Karina and Luke are picnicking when Karina recognizes Kimmie, a woman doing yoga in the park. Luke looks over and realizes that he knows her as well. Luke and Karina are in for an eye opening leap into the past.

Luke and Karina throw a nineties party, where Karina licks her wounds after attending an awkward audition. As the party rages on, Karina shares sex details with one of Luke's friends and Luke overhears. When the night ends with a big argument, Luke and Karina are left wondering where they stand.

Karina, Hannah and Stefan go hiking in Griffith Park. Karina vents about her fight with Luke and wonders where he's been staying. Hannah and Stefan try to convey Luke's perspective to Karina. Later that evening, Luke finally comes home to talk things over with Karina. Can they make amends or have they crossed a line they can't come back from?

Karina and Luke have a steamy night in bed. Karina mentions that she'd like them to be open about their sexual histories. Should Luke open up or is he about to get more than he bargained for?