A woman wearing only her underwear and tied to a collar. She is made to walk around the room on all fours with a vibrator inserted into her vagina, and she is trained by a pet who is very attentive. She's in a piledriver and when I stir her crotch with her fingers, she squirts and cums. As a reward, I gave her a spanking and immersed myself in her cock, making her body tremble with pleasure...