Princess Ironcalves is on the stairstepper. She is wearing the red high heels and a pair of short black shorts. The cuts of her calf muscles are remarkable. A minute into the clip, she takes off her high heels and pumps barefooted. Her high arches are those of royalty. Now the red high heels are on again, and then she is barefooted, pumping away. Her soles are wrinkly. Now the camera is on the floor. You are looking up, and from this angle, you can watch her calf muscles contracting. She earns the name Princess Ironcalves in this clip.