Submissive slut sucking my toes and licking my feet

This skinny submissive girl get's aroused when she is humiliated. She is with her hands handcuffed at her back and she sucks my toes and lick my dirty feet. I slap her face with my feet, and then I bend her over my knees and spank her ass real well. She has her bum red when I finish with her. Then I push my fingers deep her throat until she gags. She has her tongue full with dirt from my feet. FA18