Christal Bentley is on the stairstepper. The veins on her calves and ankles are completely swollen. The clip begins with at POV view of only her ankles, but at the 2 minute mark, you get the whole picture of her enormous hard calves pumping away. Then at the 6 minute mark, the camera pans around so you see her big calves from all angles. Finally, at the 7 minute mark, you see Christal Bentley finishing up, pumping away. She is exhausted and so are you.