For the Custody, I Slept with a Billionaire

Battered by her ex, a desperate mom sells herself for $20k to save her son. He mistakes her for a gold-digger. Six months later, pregnant with twins, she collapses under her ex's attack. As he moves in for the kill, the man she once "schemed" against appears. "Touch a St. Clair, and you die." His misunderstanding was real, but his protection is forever.