A guy goes to his doctor for his physical and gets sent to a Urologist as a precaution. 

When he gets there, he discovers the Urologist is a lady doctor 

The doctor says,"I'm going to check your prostate today, but this a new procedure and

is a little different from what you are used to. 

I want you to lie on your right side, bend your knees, then while I check your prostate, take a deep breath and say , '99' 

The guy obeys and says, "99". 

The doctor says , "Great", now turn over on your left side and again, while I repeat the check, take a deep breath and say ,'99". 

Again, the guy says, '99'." 

The doctor said, "Very good". Now, I want you to lie on your back and with your knees raised 

I'm going to check your prostate with one hand, and with the other hand I'm going to hold on to your penis to keep it out of the way. Take a deep breath and say, '99'. 

The guy begins,"One... two.... three."