Fourth factory physical in the 1970s/80s

I’ve described the first two I received from the obviously gay or bi doctor with a big hand finger fucking me. We had to go down and submit to a “hands on” physical at first every year, then they switched to every 2 years. after the 2nd physical I got from that first doctor he was no longer the company doctor. The 3rd physical was done by an older man doctor and it was not as eventful, even though he pushed hard on the prostate gland and had a fat finger, he wasn’t as big as the first doctor. The next time I got it from a younger guy doctor and I think he liked my butt too. His fingers were long but not wide and it wasn’t really too uncomfortable. I was standing in front of the exam table in my underwear after the regular stuff and he told me to slide my underwear down. I slid my black undies down and off and put them on the table, sort of a body language hint. I looked down at his gloved hand as he started examining my dick(they got a small light and looked in the pee hole at these physicals), then moved down the shaft feeling, spent time feeling my balls, then the coughing. I remember thinking I’d enjoy him fucking me as he told me to bend over. I positioned myself comfortably with my round butt sticking up and out, legs well spread and elbows on the table. I felt him spread my cheeks with his free hand as he was looking up in there and I wondered if he liked what he saw. Then came the well lubed finger gently probing at my butthole, I relaxed and he eased it in and began feeling around up, down, all around. Then came the thorough prostate feel off which made me flinch, then he pulled slowly out. I remember thinking wow that felt so good! Honestly I wish it had been his dick inside me.