Nurse gives an Edging Hand Job

So you came to the sperm bank to donate and you cant even make yourself cum? Well I'm going to do it for you. Im going to put a cock ring around your dick so it swells up and then I'm going to slap your dick and balls to make them extra sensitive. Then I'm going to jerk your dick off so hard and right before you cum, I'm going to stop. You don't get to cum until I say so.