Slave Damsel Smothered Under My Hands And Feet

I tied this lazy bitch on the couch after she missed completing the tasks I gave her! Now shes downright vulnerable under me and I can throttle her lightly with my hands and my feet! Mercilessly I smother her again and again - and its really amusing for me how she struggles - not that it would help her in any way since shes bound! Maybe I should sit down on her to fixate her even more? In the end I take off my socks, stuff them into her mouth and then continue to smother her under my hands and feet!