After treating Mark's tip to a few rounds of licking, Alex decided to do something completely unexpected. He placed his thumb on the forward side of the tip, gently rubbing the spot in a circular direction.
"Did you know that if I rub this place enough, I can make you cum?" he asked, applying a little bit of pressure, as he payed attention to Mark's facial expressions. "But you don't want to cum, do you? At least not until you've satisfied your master!"
|