I can't believe any girl could shag 100,000 guys in their lifetime, based on the average 6inch cock that's 9.5 miles of man-meat right there.
Impossible to guess, so many variables. But it's quite mind-boggling to think that some men are life-long virgins, while some mid 20s working girls will have had sex with thousands of men
If you have really worked this out, you really need to get a life.