For having the pleasure to be under Katrins well formed ass, a slave has to be strong and endure alot.
Katrin is not a light weight and her ass in these tight hotpants is not soft, means, this facesitting-lesson takes toll to him, his face gets seriously crushed, mainly his nose is pressed to a pulp.
He is stronger than other slaves, which surrendered under these hard hoptpants, but is he strong enough?