I think it was my school medical in the 80’s
It was in what we called the third year. So would have been 13/14. The year I was in was all boys although the school had started letting girls into the year below so after 5 years it would be totally co-ed.
My parents had received a letter from the school and despite my protests they signed the consent form.
When the day came, they had put aside a room in the admin block. (The admin block was also where you got sent for bad behaviour. They called it going to the hall of the house. The head would see you in there and you had to explain why but I digress.)
Anyway, appointments were 10 mins apart. So you had one boy being examined, one undressing/waiting and one who had just finished getting dressed.
Room was split by some dividers. The school secretary (Miss Robinson, a mid 30’s lady who had plainly missed her calling as a stern Librarian) was sat one side and checked you in.
I was told to take everything off except my pants and wait. This was in front of Miss Robinson which was quite uncomfortable.
After about 5 minutes the boy in front came out, and I was called in by Nitty Nora (as we called the school nurse.) It was all pretty mundane. Height, weight, reflexes. Stretch up, bend down, touch your toes blah blah.
I knew what was coming next.. “Take your pants off please”. She did the cough cough test and was about to check out the Crown Jewels when I heard Miss Robinson say “Hold on, I’ll just ask her” with that she just walked round while I was totally naked and started asking Nitty Nora about some piece of admin. Nitty Nora just carried on the exam as she answered her.
Miss Robinson went back and answered whoever it was. By this time the nurse had finished and told me to pull my pants back up.
Miss Robinson reappeared and just stood there waiting while Nitty Nora finished off by asking about toilet habits, how often etc. She didn’t ask directly about masturbation but it was something like “Have you started producing sperm ?” I went red and mumbled that I was”. She then went into how important hygiene was and to make sure I cleaned myself afterwards. I literally wanted the ground to swallow me up. It was embarrassing enough anyway but in front of Miss Robinson, I was mortified.
I couldn’t wait to get out of there but looking back, I’m sure this was the trigger for me.