Katrin: hold still! furniture-slave!

Katrin uses her slave as her cushion for to sit, while she's playing with her phone.

She begins with sitting on his belly, but soon she moves foreward... right on his face, wiggles her ass for finding a comfotable seat.

Now he has to be breathless and hold still because the phone is more importand than his air-supply.

Changing the direction to reverse makes his situation worse, in her ass is definitively no oxygen and she sits harder with more weight on the face.