You stand and the tunic up to your body, it's like a miniskirt, but you have this uncontrollable urge to put it on. You stretch the rubber "iron" collar and fit it around your neck with the plastic chain-leash hanging from it. Your jeans and t-shirt end up on the floor with your shoes and socks as you struggle into the burlap-like tunic. You easily fasten the complex leather thong sandals around your calves and on your feet.
Your tighty whities stick out below the hem of your tunic, and the shop girl suggests you take them off. You almost protest, but you're feeling very submissive for some reason. So you step out of your briefs, and the bottom curve of your bubble butt now peeks just below the edge of your tunic. Fortunately, the cold air and embarrassment makes your cock shrink, so it remains hidden from the edge of the him by a half inch (for now).
The shop girl hands you what looks like a bandage, and the next thing you know you've wrapped it around your privates in a traditional Latin manner. How did you know how to do that?