Monika offers to help me with some sit-ups. She's developed a thing for my feet, so she's ready to be put to use however I want. I work her into my sit-ups routine and push my toes into the top inside of her cheeks to stabilize my lower body and use my feet to help pull myself up from the mat. As I start, my toes are snug on the outsides of her bite, the inside sides of my toes resting against the side of her teeth, her upper and lower gums wetting the pads of my toes and the nail and tip. I rely more on his feet with each sit-up, eventually on working my toes up so far into her cheek that I... Show more