Pastel Goddess - Full Weight Grinding Knees into Slave and Crabbing

-custom- for the first 10 minutes of this clip, i'm digging my knees full weight into my slave's back. i'm much heavier than him and he is very weak, and completely defenseless as his arms are tied, mouth is gagged and taped shut, he is blindfolded and has a pair of dirty stockings pulled over his head. he really struggles to breathe under the pressue of my ass. i wave my stinky feet in his face and all he can smell is filth and sweat. in the last 5 minutes, i give him a hard couple of boston crabs, yanking his legs high and painfully bending his back in. he cries but is helpless, as i gleefully insult and belittle him until he is completely used up.