A request idea I've had stirring in my head for a while.

A young man, limbless with short stumps or no stumps, propped up with a pillow, forced to watch as, less than a meter away, a loli (or a young-looking girl if loli isn't your thing) masturbates, turned on by his helplessness. Horny and frustrated, yet without limbs, he can only lay there and watch. His cock throbs, precum building on the tip. He desperately wants the loli to use him. Maybe she will later, but for now, she is satisfied watching him squirm as she pleasures herself. So close, yet so far.

If you don't do men, feel free to reverse the genders.