The Secret Heart (The Aerie Doms #3)
Christina Thacher

A charter member of The Aerie, Angela Vernon had been a great submissive. She and Penny had been friends, which is why Angela had left when she'd fallen in love with the one man she could never have: Xavier Greer. Even before Penny got sick, Angela knew it was wrong to want another sub's Dom. So she switched to being a Domme and tried to forget Xavier.
Fate brings them back together, and Angela reluctantly rejoins The Aerie. When Xavier sees her, proud and tall, he wants her anyway he can get her. Falling for a Domme isn't exactly how Xavier imagined he'd find passion again, but there are even bigger surprises in store for him as Angela proves to be so much more than he'd assumed.