"I'm sorry, but I can't let you have a release. Try to hold it in for me, now." She holds your sac tightly until you regain control, lightly running her fingers along the length of your swollen shaft:
"Poor little dickie, so fat and red. It wants to squirt so badly, doesn't it?"
You are unconsciously trying to pull your hands free to finish the job she had interrupted.
You exclaim that yes, you want to squirt very badly!