Nobody's Angel by Kallypso Masters
Series: Rescue Me, Book 2.
Approx. 119,540 words.
Published on September 30, 2011.
When Marc rescued Angelina from an abusive Dom at his fetish club, he never imagined she'd upend his safe, controlled life. But his SAR partner, Luke, a widower, thinks Angelina has been sent to him by his wife. Marc knows only he can fulfill her sexual needs, but won’t hurt his friend. When the abusive Dom stalks her, she turns to Marc for help…and learns a submissive has power, too.