Favorite Sin - Victoria Pinder

He's the "bad boy" she ditched for the wrong man. Now, he's the billionaire savior helping her escape an altar-side disaster.

Calliope Campbell spent years playing it safe and settling for the man she thought she needed. But when a pregnant woman interrupts her high-stakes destination wedding to expose her fiancé's betrayal, Calliope realizes her "I will" was the biggest mistake of her life. Walking away from the altar in her Vera Wang gown, she finds herself in the arms of the one man her brother warned her about, Michael Marshall.

Michael is no longer the reckless boy from their high school squad. He's the brilliant "Whiz of Wall Street," a billionaire rebuilding his family's tarnished investment empire after his father's scandalous fall. For a year, he's lived with the regret of a missed chance with Calliope, and he isn't letting her go a second time.

The deal: Michael provides a private villa escape and corporate protection, and Calliope helps him secure a career-defining funding deal.

As they move from a steamy Mexican retreat to a cutthroat Miami boardroom, the "friends with benefits" arrangement they agreed upon becomes an all-consuming fire. But with a vengeful ex-fiancé threatening to sabotage Michael's future and deep-seated family scars holding them both back, Calliope and Michael must decide if their connection is just a temporary sin, or a permanent happily-ever-after.