Mistress has had a difficult day at work and decides to take it out on her slave.

She decides to play a game where she smothers and bounces on her slave's face for 10 minutes and he's only allowed 3 x 30 second breaks.

During the first few minutes the slave tries to push her off; Mistress shows him who's in charge and straps him down, he will not be doing that again.

"oh look you can't use your hands now, they're both tied down" she laughs then says "you can't push me off now slave"

Mistress's oiled up ass looks huge as it smothers her slave's face.