Movie description: "Exercising Her Ass Off". Tiffany Watson is a hot and snooty student who always tries to take the easy way out in college gym class. Suspecting her of forging a doctor’s note, stern gym teacher Serene Siren forces her to come do make up exercises after school. Serene has a dominant disposition and really enjoys punishing the defiant brat. When the ladies get each other mutually warmed up, Serene dismisses the other present student, so that she can give Tiffany the anal workout she really needs.