Oooh dear. How do I live this one down?

I was at my sister's wedding when I had my most embaring moment EVER. The week before, my mom and I had gone dress shopping for a dress. After looking in store after store, I finally found the perfect dress. It was a mini-dress, and very short. My mom didn't want me to buy it, but since the wedding was only two days away and this was the only dress I was going to wear, she agreed. At the wedding reception, I was dancing like crazy with my sister to our favorite song. Everyone on the dance floor was crowded around us cheering and watching us. I felt like the center of attention, along with my sister; it was a great feeling. Suddenly, I accidently stepped on my sister's long wedding dress and slipped. I flipped backwards and landed on my back. I ended up rolling backwards a little, my in the air....and everyone could see my thong, because the dress, which didn't do a very good job at covering me in the first place, was now rolled up above my hips! I was completely mortified.