Jenny Mace warming up for Ultimate Hopscotch in the Most Unsupportive Top Ever.

Claire Adams struggling with alternating stress position and pushups.

Keeping Claire Adams motivated for a stress position.

Jenny Mace timed and topless on the Ultimate Hopscotch course, with assorted clamps on her nipples.

Jenny Mace holding her arms isolated and wearing heavy clamps on her nipples, going through the meanest hopscotch obstacle course ever.

Nina playing hopscotch first with metal clothespins, then vise grips on their nipples.

Jenny Mace bouncing through Ultimate Hopsotch with her wrists cuffed behind her back, and painfully trying to squeeze between the electrified bars of the obstacle.

Have I mentioned that Nina is tough? Hopscotch and other play with vise grips on their outer labia.

Endza and I experimenting with different stress position predicaments.

Endza Adair trying out the Ultimate Hopscotch course after warming up with some jumprope.

Endza needing some handicaps on the Ultimate Hopscotch course.

Nina trying out hopscotch version 3 (now with dignity obstacle!).

Nina trying hopscotch with weight hanging from their labia.

Adding more weight to Nina’s nipples for hopscotch.

Endza hopscotch-ing with even heavier clamps tight on her nipples.