https://www.amazon.com/dp/B085GKPF5V
Becca is a fitness instructor at a very popular gym that has seen a sudden influx in clients due to a reality television show being produced there. Her ego drives her to improve and cash in on the increased business, but her growing infatuation with the gym's biggest star and her former rival, Heather, are at odds with those goals. Eventually, Becca learns that she too can become a very big star in her own right as she submits herself to her new lover.
This is set in the Heavy Motivation series of books that began with chapters
April & Marsha,
Heather, and
Sara & Dani.
Features breast expansion and FF and MF intercourse.
