You are going to donate a semen sample to my clinic today. I usually have male patients go into a room and make their deposit into a plastic cup, but you are special. I want to ensure that I get the biggest cum load out of you, so I will help you. I will be using your semen to impregnate my female patients. I am going to strip down to my leather lingerie and tease you with my sheer panties. You are so hard! I want you really pumping that cock for me. I am going to ensure that as many women as possible find use for your cum donation. Keep stroking. I grind my ass onto your hard cock and you feel the tension of an amazing orgasm rise. Good slut. I want you focused right on me. Cum for me whore! I am going to collect a semen sample from you this way every week.