She had lost her skirt, and was laying on her back riding an enormous vibrator, with one foot in your mouth! "That's it slave, keep sucking those toes!"
You were on your hands and knees, and insanely turned on! You tried to lean forward to take her foot deeper into your mouth, but when you did, you couldn't breathe! You had a rope around your neck! Helpless to do anything, you had to hold your head back to keep from strangling yourself, and let Penny bring her lovely toes to you.
She grabbed the bars of the bed you were both on and forced her leg out, pushing her toes deep into your mouth, and came with a loud screaming climax!