Just as Hannah's getting comfortable mixing business with pleasure, a blast from the past tells her what she's waited years to hear.

Whisked away on a private jet by her billionaire boss, Hannah wakes up in the cool sheets of a California king. He presses up against her, she moves her hips against his... It sucks that we have to leave tonight, she thinks, before moving her hand to where she can pleasure herself. Everything about her boss is so extraordinary, she could easily get used to this.

But just when things seem to be falling into place, life has a way of throwing in a kink—sometimes in the form of an old flame. Forget about lazy days this summer, as Hannah gets caught between two lovers, Ireland gets entangled in a threesome, and Holly's antics finally catch up with Jack. Difficult decisions lie ahead for this motley ménage, and while some will turn to the familiar, and others take a darker detour, no one will quite approve of Hannah getting engaged.