I Came During A Colonoscopy

I went in for my first screening colonoscopy last week. I fear sedation after prior celebrity deaths from it (although rare). I asked for no anesthesia or sedation. The colonoscopy nurse is a personal friend or my wife’s- we often go out with her and her husband. About half way through the procedure the doctor had to navigate a bend in my bowels. He was working hard to turn the scope, pulling it out a few inches then re-inserting. I got an erection from this tube moving in and out of my backside. Our friend the nurse noted the tent in my gown. She understood the situation as if she had been down this road before. She grabbed a towel and announced to the doctor and the other assistant “code E”. She lifted my gown and placed a towel around my erect member, looking right into my eyes and giving me a knowing sly smile- half smirk. The doctor kept trying to navigate the bend, working a a sweat up while moving the scope in and out, grunting occasionally. Our friend, the nurse is egging me on with her eyes and facial expressions, wanting me to come. After about 3 more minutes I let loose with a massive orgasm. The nurse announces to the room “We’ve got a gusher!”. That is met with some giggling. After the procedure I am in recovery and she goes to the waiting room to get my wife. They both come in together laughing like she just told a joke. The joke was on me, of course. My wife has tried to reassure me since the procedure, patronizing me with comments like “It’s ok of you like to be fucked in the rear.” Frankly, I’m embarrassed and haven’t had sex with her since, I feel like less of a man.