To men, sex is just sex. They do not place any value on it. Marriage sex, relationship sex and casual sex are all the same to them. They know they are valuable and that their worth is not affected by their sex lives and yet women spend all their lives worrying about body counts and placing all their self-worth on the number of people they have slept with.
I do not know what it is about having a body count of two that grants women respect. They all claim to have slept with their first boyfriend and their immediate ex when they are getting into talking stages and that number remains constant even though we all know it is a lie.