How many people have you slept with?

I once knew these two girls in college. And we were all chilling at their parents house. And they were bragging to me about how many men they has slept with. Once said, 'I've slept with 11'. The other said, 'Haha, I've slept with 13'. Then the other said 'I like sleeping with men with no experience, as you can boss them around in bed and tell them what to do'.

And I was sitting there, aged about 17 and a virgin at the time, feeling slightly intimidated.