[Relationships] [Serious] A question for the straight males

Straight males out there, here is my question. How many people is too high for a girl to have previously slept with until you rule her out of your preferred standards?

Recently, I have been told that the girl I was considering getting into a serious relationship with has too high of a "sex count". Meaning my friends believed she had slept with too many guys before, when personally I did not believe it was a large number. I believe that amount of people she had been with was relatively low.

I am kind of disappointed in my friends, because I feel like them calling her a slut for the amount of people she has been with, and telling me not to get into a relationship with her is kind of judgmental and unfair.

So other males out there, what is your "too high" number? What is your preferred number?