Yvette Costeau, you don't need air under my ass!

Yvette steps over her slaves face and decends carefully, so his nose goes right in her ass-crack.

After little shaking for driving the nose deeper, she sits with all her weight...

My ass is so perfect, you don't need to breath!

But this is only the half truth, after a little time he needs air... and more air...

Yvette is so gently, lifts her ass and let him breath... and offcoarse decends again.

The slave-bench is so high, that she can lift her feet of the ground and sit like on a horse = with all her weight!!!