Some number north of 250.
I am 40 now. I read "The Game" by Neil Strauss at 25, heavily studied game and psychology for years, and fancied myself a pick-up artist for a time. I'll admit that I had zero game before 25, but my looks and being a guitarist did get me laid. Once I entered law school, women took a much greater interest in me. When I became a lawyer that owned his own successful firm, it started to get easy with attractive women. I have also always focused on diet and fitness, and I've kept my physique in top shape for years.
However, the main reason for my number being high is that I made the intentional choice at 30 to never get married or have children, and I have generally avoided monogamous relationships since I was 18. I've been monogamous for about 5 of the last 22 years of my life. Having the freedom to have sex with multiple women has always been very important to me. I've always made it a top priority to keep the quality, quantity, and availability of women high in my life. It's been my greatest passion besides work.
These days, I like to focus on what I now deem "higher endeavors" such as reading, researching, and writing, but my desire for having multiple female sexual partners never goes away. And since my abhorrence for monogamy, marriage, and having children has only grown stronger over the years, I doubt my body count will slow down any time soon.
I'm actually a bit disappointed in my number when I do the math, because I've been actively dating women for a large part of the 17 years I've been out of monogamous relationships. 17 years times 12 months per year is 204. If I put my number at 250 for simplicity, that means I've had sex with 1.23 new women per month, which is lackluster by my standards. I've gone through periods of months many times where I'm easily having sex with 2 new women per week. It was definitely when I was younger than 25, and while I was building my law firm working 80 to 100 hours per week, that I was slacking off.
I have higher standards than my number may imply. If I had sex with everything that had a vagina, especially with the popularity of dating apps exploding since I was 18, I would likely be over 1,500 by now or more. Also, knowing my number exactly would be impossible given that I used to intake and mix a large amount of substances as a rock musician before law school.
