What does it mean if a girl is looking at your crotch?

Anonymous
I was in a group in college involving a girl that I used to be quite close with the year before; just friends but kind of stopped speaking recently. We were talking about a random incident from the year before and she inadvertently admitted that she had been checking out my crotch, basically sizing me up, and I later overheard her saying that she thinks I'd have a big dick. She then admitted that just in this conversation that she couldn't help not looking. Being rather shy, I took this as a massive confidence boost but I'm just wondering if this means anything or whether girls just naturally look at guys crotches, regardless of of who he is?
What does it mean if a girl is looking at your crotch?
18 Opinion