I love some of the ideas in this thread! So sexy.
I haven't thought this idea all the way through, so feel free to offer suggestions: I imagine going to the doctor for some penis-related reason, ED, or chafing from jacking too much, or a rash, anything that requires more than one visit to treat. After an examination like the ones described in this thread the doctor prescribes some meds. The meds have some side effects that need to be monitored. S/He says that I will need to get some lab work done once a week for two months, and to schedule another appointment with him/her for then. I take my prescription and head to the front desk to check out. The desk nurse tells me that they will call the lab and set up an appointment for me for the following week and I can schedule the rest when I am there. I get an e-mail the next day informing me of my appointment two days hence.
I show up expecting to give some blood and be on my way. The lab is in a strip mall, but an older one where most of the retail spaces have been converted to office space. There are two men and two women in the waiting room when I arrive. The waiting room is in the front of the office and has a large window that looks out onto the parking lot. I sign in and sit down.
A nurse comes for me after a few minutes. She leads me towards the back but stops before turning down the hallway behind the waiting room. She points to two doors that are obviously the doors to what used to be changing rooms when the space was a store. Neither door reaches the floor nor the ceiling, there is a good two feet of open space at each end.
"Go ahead and get changed" she says, pointing. "Remove everything you are wearing and put on the gown and slippers and go sit back down, a technician will be out to collect you in a few minutes"
I am confused but I obey. Obviously the gown would be too small, but I'd do what I could to make it work. I sit, embarassed, with the other, fully dressed patients until someone comes for me, possibly with the beginnings of an erection.
I try to hide my embarrassment/arousal when the lab tech comes for me and leads me down the hall into a large room (former storage?) with four curtained exam areas set up. Some look empty, some look occupied. We enter the nearest one and I am told that they'll be taking a blood sample and a semen sample, and my blood pressure. I assumed I'd be giving blood, but the sperm sample is a surprise. The technician asks me to take off my gown and sit on the only chair in the space. I get my blood pressure taken while naked. We wait together for a few minutes for the phlebotomist to come and take my blood, which is also done with me nude. After being exposed, semi-erect to another person, they leave with my blood sample.
The technician leaves and comes back rolling a cart in. The cart is obviously a stand for a video camera and a light. I am told to stand on a tape X on the floor and to please produce a semen sample. I am recorded masturbating myself. The sample is collected and I'm led back out to the changing room, on view to the people waiting, with a wet stain on the front of my partial tented gown. I change and leave.
I get an e-mail from the lab the next day letting me know that my results are in and that they have been added to my electronic medical record. I click on a link in the message and am taken to a page that requires me to log in to get my details. I don't have a login but even so I can see my first initial and last name, and the time and date of my last appointment, and there is a link at the bottom. I click it and end up downloading the video of me beating myself off in front of the lab tech.
I left out a lot of nice detail because the message was getting long but I like the idea that I have to go to an independent lab and because they aren't doctors they aren't as concerned with privacy, patient modesty, or confidentiality as an MD would be.