Should I take this the wrong way?

Today at lunch I was sitting with my group of friends ( including me,4 girls and 3 guys) and we started talking about relationships and sex. My friend was talking and pointing out things about all of us and said that out of the 7 of us, I was the most innocent (which I am lol) One of the girls - I'm nott really friends with her- said something about how she's had sex with every guy she's dated then asked me if I had it. I haven't and said Nope and she sort of seemed shocked and said something along the line of "Wow, your joking? I thought you would've already." Should I be offended by that comment. (We're all in 10 or 11th grade btw)