Wild, Meredith. Bridge series novel.

Olivia Bridge has always been a good girl--good grades, good friends, and a good job that her wealthy parents handed her. Desperate to carve out a life that is truly hers, Liv walks away from it all and takes on the challenge of helping her brothers open a chain of fitness centers in New York City. Just as she's beginning to find her footing in a new place, she's caught between two men who couldn't be more determined to turn all her goodness inside out. Will Donovan has the capital to make the Bridge brothers' entrepreneurial dreams a reality. Taking their uptight sister to bed seems a reasonable perk for the risk. Liv is the smartest, sexiest prude Will's ever met, and he can't wait to break her down. Life is too short for Ian Savo to play by anyone's rules. Sharing women with his friend isn't anything new, so when Will introduces him to Liv, he can't wait to get a taste. But falling for the same girl, or falling at all, was never in the plans