Platform shoes and dark toenails for this ballbusting day.
She starts with frontal kicks and it's very difficult for him to keep his legs open.
Then she orders him to lie down on the floor and stomps his poor balls withe the soles of her shoes and with its terrifiant squared heels.
This is just the preamble of pain.
In the end he lays down on the floor, belly down, and she squashes his balls from behind under her shoe soles, making him crying in pain.