Hanging by a Thread — Jenna Sutton

Thirty-year-old Bebe Banerjee is desperate to get rid of two things: her fiancé and her virginity. Escaping her arranged marriage might be impossible, but she refuses to give her firsts to an entitled jerk who lives on another continent. Instead, she devises a plan that guarantees another man will get her momentous firsts. But she never imagined that man would be Cal O'Brien, the gorgeous heir to the Riley O'Brien & Co. denim empire…

Although Cal has always been fascinated by Bebe's brilliant mind and beautiful eyes, he's never pursued her. She can't stand the sight of him, and every time they're in the same room, they end up trading insults. Yet when he finds out about Bebe's bold plan, he makes his move, unaware of her upcoming nuptials. He promises to make her firsts unforgettable, but he doesn't know how hard it will be to forget her when their arrangement ends.