My patient proves to be a bit uncooperative. The anal stimulation, cock stroking, and ass and pussy sniffing are proving to not be quite enough for the cum extxraction, so I bring out a vibrator to help assisst. As his doctor, it's important for me to thoroughly test out all sexual modalities in the process of milking him -- just standard check-up procedure -- and I apply the vibrator to the sensitive underside of his cock. He thrusts in pleasure. But not all examinations are successful, and today is not the day to collect a semen sample from him. Not letting today's visit be a wash, I decide that it's my turn to have some fun, and I use the vibrator on myself while I cum right in front of his face. A little inspiration for his next cum extraction visit. ;)