Katrin makes with her slave a challenge with standing fullweight on his belly for one minute.
She begins with stepping on the scale, weighing her self (value is visible in the clip!)
The she steps barefoot on the (to) soft belly of her victim.
Her weight let her sink deep in his flesh, for increasing the effect, she stands on her toes.
He's moaning because her weight, but he succeed.
For more, she puts on flat shoes and steps again on him...
now she wants to win ;-) and begins to bounce or standing on one foot for increase the pressure...
But again succes!
To the end she puts boots with edgy thick heels and steps on him, pressing the fat heels deep in his flesh.