Ask if you want to be pleasured or if someone tied you up like this on purpose to humiliate you. When I hear a yes in mumble, I would proceed to play with your nips then work my way down to your cock and pleasure you til I made you writhe with pleasure. I'd pull down the gag then make passionate love to your lips. Go back down on you, play with your balls and lick them with my tongue, then I'd pull your nips so hard until you screamed in ecstasy. I'd suck you until you came in my mouth then I would spit your own cum in your mouth and watch you swallow it.
I also love nerds. They are my true kink. Especially nerds with big cocks they are too virginal to do anything with. It's all about the pleasure. I will make him feel like a stallion inside to match the nerd outside. ;-)