Converse And Bare Feet Abs Torture

I ordered the slave to work on his abs weeks before - and today Ill put them to a rough test! I start trampling him with my white converse sneakers and walk all over his upper body - but soon concentrate the trampling to his stomach only. After taking off the converse I torture his abs under my bare feet - by mostly standing on my tip toes! Of course this weakling cant handle that for long and my toes sink into his stomach deep - but all his whining and groaning wont stop me. If he had done his workouts like I ordered him to this would be much less painful!