If Thirteen Hours by Meghan O'Brien was fanfic, we'd call it a PWP. But it's a 'novel' so we call it a PWP. Seriously. There is no plot here. Oh wait. Is it a plot if an uptight, closeted exec's best friend sends a stripper (who's almost finished with vet school) to her office late at night to give her a lap dance and when the exec escorts her out of the building they get stuck in the elevator for thirteen hours and end up having sex? A lot? I didn't think so. And when they get out of the elevator they have more sex? Yeah, still no. The only real plot here is the gradual build of the story to more and more and different sex and BDSM and, well, SEX. I've already told you that O'Brien writes a hell of a sex scene so imagine a novel of just that. Is there such a thing as too much lez sex? If so, you may just hit your limit with this one.