Nail Hole
Here's your opportunity to get very close up to my long red nails while they exert total control over my latex smothered bound boi. There's no better way to make it feel completely owned than to plunge my freshly manicured nails deep down its nail hole. That way it can feel my dominance from its inside where's its most tender and heretofore inviolable. It must realize that no part of it can escape total surrender, but why would it want to? In the end, it is allowed the privilege of shining my pretty nails with its nail polish.