"Whoa, slow down! I don't want the show to be over quickly," she says. "Just tease it!"
The hand stroking your cock slows down and just teases your cock. You ache and ache as she watches you closely...
Each time you get more excited, she orders, "Slow down!" Then the stroking slows to a pace that only gets you more and more frustrated. The unseen hand presses against your cock and spreads the pre-cum around slowly on your belly and cock-head in a teasing fashion that presses even more pre-cum out...