Liberated Heart (Windy City #4)
Measha Stone

Just when she’s about to be crushed beneath the weight of the pain, she’s delivered another blow. A new BDSM club has opened in the city- and one of her own friends is the owner.
With so much sudden turmoil in her life, Erin decides to stop being the practical, dependable, and vanilla person she has always been and looks to explore this new world.
Dominant Bradley Sorenson promises to show her everything she wants to see, and more. But just as she begins to find contentment in her true self, she receives a letter which starts a chain of blackmail that could ultimately end her new relationship.
Can Erin fight the urge to retreat into the safety of her old life and work to liberate her heart?