Kaitlin's Transformation (Patreon)

Kaitlin was a long distance runner recovering from an eating disorder in 2014 when she decided to try Boomgirl. Her muscle mass was pathetically low and her limbs were emaciated. Her upper arm measured only 5.5" around, each! 18 months later, though, they were more than three times that thickness, at an incredible 18" pumped!