This is an ideal setup for smashing balls, a vertical plank with my slave-friend balls defenselessly dangling ready to the be crushed. I start to ball stomping with my awesome Adidas. They are a bit tough sneakers, you know, and even a small kick can create lot of pain on already sore balls. I then put off my sneakers (giving one to him to worship, just for keeping him quiet ;-)) and then I start to stomp those balls barefeet, sinking my little beautiful feet in his useless swollen sack. Feeling those tested swollen balls under my toes is very satisfying (only a sadistic girl can understand how much), so I indulge in this pleasant activity, granting him his fair share of torment. But then again I feel that bare feet stomps aren't enough, and I put my sneaker on again, giving him some good, loud, painful stomps with shoe tip. The play gets hard then, with a lot of pain I fear by his side (he was several times close to asking me to stop, he said then, sissy :P) The second part is much more "kind" to him anyway, and I let him lick my beautiful little feet and masturbate his wimpy weenie while I squeezing his balls, slapping and stomping them. He needs a couple of minutes to be able to empty his sore balls, but he finally gets his happy (painful) ending ;-)