Intra-generation gap

In honour of Duncan's birthday I have a story. I was waiting outside my French class last week and overheard an exchange between two fellow female students. One was a first year student, let's call her Redhead. The other, Brunette, was about my age, but could easily pass for a few years younger. They were talking about an assignment we have to do where we describe a photo of ourselves in French. Enjoy:

Brunette: I don't know if I have any pictures of myself to use, I usually just take them of my friends.

Redhead: Well, I could give you one. You'd look exactly like my best friend if you were like 20 years younger.

Brunette: Twenty?! What, if I was seven?!

Nope, didn't make me feel old a bit.