Thalia Lopez always follows the rules. Being a life-long good girl has its perks: she’s got a full scholarship to college and her choice of graduate programs, and she never has to worry about getting into trouble. It also means she’s a twenty-two-year-old virgin, but it’s not like that matters.

Of course, the one time she steps out of line, she winds up locked in a bar bathroom. The men’s bathroom. With a total stranger.

When Caleb Loveless entered the men’s room, he wasn’t expecting to have to leave through the window. He really wasn’t expecting to be doing it with one of the prettiest girls he’s ever met. And when he asks her out on an impromptu date and she says yes? It’s the best night he can remember, with the best kiss at the end. Of course he can’t wait to see her again, and the sooner the better.

They exchange numbers. They make plans. They see each other the next morning, in Calculus 101. Turns out that Caleb is Professor Loveless, which makes college senior Thalia extremely off-limits. But Thalia can’t forget the way that one heated kiss felt. And Caleb can’t pretend he’s not letting his fingers linger just a second too long when she turns in her homework. What’s a girl to do when the one person she wants is the one she can’t have?

The Hookup Equation is the fourth book in the Loveless Brothers series, and can be listened to as a total standalone. It's for fans of high-heat, low-angst romantic comedies and anyone who's ever been hot for teacher. This one's got tons of forbidden steam, a high-stakes secret relationship, sibling banter, a heroine who really enjoys her first time, and a college setting that will make you feel like you're back on campus. There's an HEA, of course. (And yes, it bangs).