Girl's Behavior

When you are wearing yoga pants?

Panties Exposed In Gym Class So It was a couple days after i was forced to wear girls clothes, as you know my underwear drawer consisted of ONLY panties, disney princess, my little pony, hello kitty, bratz, selena gomez wizards of waverly place, hannah montana, tinkerbell, and stuff like that

well i was at school in the 7th grade and we had gym class, since my mom picked out all my clothes including my gym clothes, i had to wear the embarrassing yoga pants leggings like all the other girls in the class...

so all the boys wore shorts and the girls wore leggings and my leggings were see through...
anyways today was my first day of gym, we changed in the dressing room and all went out into the gym, people starting giggling when they would see my pants

well today we were playing ultimate frisbee, its kind of like soccer but with goals and a frisbee.

everytime there was someoen throwing the frisbee i was praying that it wasn't to me, because i could catch for my life... and i didn't want to have to bend over because the pants would become see through...

well 10minutes went by until someone finally threw the frisbee to me... it was a girl that sat next to me in math. her name was Erin, she was pretty and had blonde hair, she was one of the popular girls in the school, she was also wearing stylish yoga pants and probably a thong under them

i obviously didn't catch it and it landed on the floor, all 20 kids eyes were on me... i went to pick it up and i heard some of the girls giggle as i bent over, you could see a little pink coloring and the outline of my panties.
here is a link to the image of what i look like when i bend over in them
www.google.co.uk/.../&tbnid=vzwLmAyO9b1MlM:&docid=KWnd1_peE2AcgM&h=630&w=450

why does this happen and has this happened to anyone else girls only
When you are wearing yoga pants?
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