lewd, piss, diapers, messy
You felt the wonderful pressure and warmth of her well lubed ass enveloping your cock. You couldn't see, you had to imagine how you looked. Especially from her point of view, she's laying back on the edge of the bed, from the feel of her hips when you bottom out she's holding her ankles, her legs up and out the way of your thrusts.You imagine her smile as she looks at you. The look of disgust mixed with "I caused that" which you know well. Your body coveted in writing, the stuff she can see on your front she'd made you write. Dozens of degrading things you'd had to force your hands to scrawl in felt tip pen across your skin. Your face and back are covered too, she'd written those, you don't know what they say, you can only imagine.
But the writing isnt what makes you feel most disgusted. That's the reason you can't see. The heavy, piss soaked diaper that you'd been wearing all morning, the one she'd taken off you so she could receive pleasure from your cock. The one she was making you wear on your head while she enjoys you. The one blocking all light and filling your other senses with the stench of your own piss. That is what is making you feel like the filthy, disgusting, slut you are.
