Forced to be the wife of a dangerous mafia

A Mafia novel in which an innocent Tiffany who knows nothing about her stepbrother's deal with the Mafia kingpin is forcefully sold and eventually comes to love with the seemingly cruel and heartless mafia boss who only has his eyes set on her.
"If I ask you to take your clothes off, you take your clothes off, princess." Xavier continued smoothly.
"Or if you don't, you remain prepared for me to take them off myself." He smirked. "I do not shy away from doing things myself."