You guys might crucify me for this, but when I read the comment by Boxster I also thought he was referring to adults. I mean, a lot of us will say "that girl is good looking", "whos that girl you're talking too?", etc. Giggling and ukulele meant nothing to me, I just thought it was a gathering of women/girls (call it whatever you want) who may have had a few drinks and were enjoying themselves.
I think you guys just have a misunderstanding and got out of hand. I would never believe that 00 would make that joke if he believed they were little girls or teenagers. Just my two cents.