Many Different Shoes Tried Out For Trampling

Ive brought so many nice shoes - some boots, some high heels - all of them look like they were made for trampling! And Im going to test out a few of them on the slave now! First well start with a pair of high heels - nice strappy ones with thin heels - and they make the slave scream in pain as I walk all over his body and his hands. Next up is a pair of boots with chunky heels, but a deep painful tread. After putting them on, I walk up his arms and then step on his chest to trample it. I try out another pair of heels and another pair of boots afterwards - and by now the slaves chest and stomach are covered in heel marks pretty well! How long will I make him suffer?