Big Black Instructor (Interracial Black M / White BBW Story)

Sophie is a mother of two, who's husband Frank, seems to have lost all sexual interest in. She's had a bit of trouble getting rid of some weight after having her second child and Frank is very passive aggressive with his comments for her to lose it. He even buys her classes for a local Pilates and yoga gym.She decides to try it out and finds that her instructor is a well built, big, black beast of a man. He flirts with her, making her feel like she once did, uncaring about her weight. As he continues flirting with her while getting her warmed up, she notices quite a large outline bulging from between his legs. The two head over to a machine to start her workout and things go in quite the interesting direction...Does her big black instructor work her out or can she keep up in this hot, intense session?