It just gets me because there are sixth graders that have a larger cup size than me, and a lot of time my guy friends thoguht it'd be funny to make comments like 'If you had boobs, you'd probably be hot' or 'you have the same bra size as my sister - she's in third grade!', which wasn't the greatest for my self-esteem.
And the tissue has actually fooled quite a few people. But then again, they weren't exactly the brightest people in the world.
Different people develop differently. Don't worry too much about it.
But the important thing is that you are in middle school. There's something very important to remember about middle school: very few people in middle school are actually people. People in middle school tend to be extremely insecure. A notable percentage of these people then decide to try to pretend that they're not currently hating themselves by making everyone else feel bad. Probably you're one of the people trying to develop some sense of self-esteem without making everyone else's lives just that tiny bit more miserable, but ... middle school. It sucks. It will continue to suck. It will probably mostly stop sucking by the time you're in tenth grade. Until then, have fun with hormones and puberty and crazy expectations, or rather make the best out of middle school sucking until you get to a point where people back off more and you can feel confident in yourself.
Also, try not to remember anything that happens in middle school ever. It's rarely a good idea.
(I basically had EMOTIONAL WRECK; COME PICK ON ME FOR I WILL CRY AND MAKE YOU FEEL POWERFUL floating over my head from second to ninth grade. I have been there, only without the bra stuffing because bra stuffing is silly (though I was very self-conscious about my tiny bust for a while and then I got over it and then I stopped having tiny boobs and now I am like :|), but yeah.)
ETA: 21:58:33 < Midnight> surskitty: did you ever know that you're my hero
21:58:38 < Midnight> and everything i would like to be
21:58:52 <&surskitty> Midnight: hm?
21:59:35 < Midnight> I mean, I was just like that then, and you got selfconfident and awesome and I totes didn't
21:59:47 < Midnight> did something happen
22:00:15 < Midnight> or were you just like "yeah :| gonna do this, not gonna put up with crap anymore"
22:00:27 <&surskitty> I still put up with way too much crap
22:00:43 <&surskitty> I think I started actually having a spine when in ninth grade some guys were picking on me
22:00:50 <&surskitty> so I tried FAKE CRYING
22:01:10 <&surskitty> and the english teacher (who is the best teacher ever) was like LOOK, YOU MADE HER CRY. GO BUY HER CHOCOLATE OR SOMETHING
22:01:21 <&surskitty> and they were mock-concerned after she left
22:01:27 <&surskitty> and I was like ... bahaha
22:01:41 < Midnight> haha
22:01:46 <&surskitty> "... wait you're not actually crying" "noooope!" "... omg."
22:02:08 <&surskitty> and that is my story of how I started actually getting self-confidence