Mistress Natasha is really mercyless in this clip. With her flat street boots she hardens the cock until the slave almots cums. The she pours the content of an ashtray over the cock. After she has applied some lotion she goes to work. The cock is not only black from the dirt within seconds but the slave has to bear the riffled rubber soles. The mixture feels like sanding paper while the cock is subjetc to squeezing under the heels. Finally she milks the slave and while pressing the cum out slowly the slave moans in agony.