Tiffany wakes up inside a laboratory, stripped and tied down to a surgical table. Taunting her within the lab is the previous experiment, a futanari names Matty.
Matty wakes up in a horrific situation. She is strapped to a table half-naked in a dark laboratory. Scientist Joanna Wei enters the laboratory, preparing to inject Matty with her mutation serum. Joanna injects the serum into Matty. Her muscles grow in strength and her genitals mutate into a large erect penis.Pleased with her latest creation, Joanna toys with Matty’s new cock.