Sammy and Thammy Give the Machine a Workout. Sammy has built a mechanical fucking machine for her mechanical engineering assignment. She wants to prove that women are as mechanically capable as men. She also wants to show her machine fucks better than men. Her best friend Thammy is excited to take Sammy's creation for a test drive. The machine tirelessly fucks the girls' mouths and pussies triggering powerful orgasms. Sammy gets an A+.Sammy and Thammy G...