Meet the Brady family. They're brilliant, brooding and barreling into relationships whether they like it or not.

Irresponsible. Impulsive. Reckless. Cal Brady has heard it all from his family and he's getting a little sick of it. He's a smart guy, after all. In a family of brainy engineers, someone has to be the fun one, but the other Bradys don't see it that way. To get a break from his family, Cal decides to move out and answers an online ad for a roommate.

Logan Miller's ship has come in. For the first time in her life, she isn't scraping by. She's got a fancy degree and a real career...with coworkers who don't like her very much. But it's fine. She's had mean colleagues before. Eye on the prize. Now that she's getting a roommate, she'll even have a nice financial cushion. What could go wrong?

For starters, her roommate turns out to be a dude. But this is fine. They can be friends who live together. They just need to ignore the simmering lust that vibrates between them.

Somewhere between Cal's drive to prove himself and Logan's need to chill out, the roommates tempt fate and get freaky. Will Logan wind up being yet another one of Cal's mistakes or can this pair engineer a life together?

Vibration is book four of the Brady Family series. If you love messy family dynamics, unforgettable characters, and sizzling chemistry, you'll devour this new series by Lainey Davis.