Book 1 of the Kings of Sin Series
 
"The billionaire CEO never planned to marry—until the threat of blackmail forces him into an engagement with a woman he barely knows.Vivian Lau, jewelry heiress and daughter of his newest enemy.It doesn’t matter how beautiful or charming she is. He'll do everything in his power to destroy the evidence and their betrothal.There’s only one problem: Now that he has her...he can't bring himself to let her go."
 
Forced Proximity, Enemies to Lovers, Forced Proximity