Semi-formal

my sister's sweet sixteen is semi-formal. NOW she tells me. an hour before. and i thought i had fifteen seconds. normally i dont care about things like that, but now i have to find something in my meagre wardrobe that wont embarass Her Diva-ness. i have a feeling this foofy skirt isn't semi-formal enough, but it's nice, and the shirt is semi-formal-esque. And its only for an hour. but i still thought i would be able to skip all this nonsense...
:edit:
well, turns out its spring already, which means Katy's friends were wearing the sort of thing we'll be wearing to 8th grade graduation. but it was cold, and it didnt really matter, and one other girl was wearing a (shorter) foofy skirt. But the weird part was just landing in a high school world for an hour. It was a two year age difference. I knew some of them- would have known a lot more if it was the freshmen- but i had really nothing to do. except take pictures. sometimes my sister would shake her head at me not to- she was... dancing with her boyfriend, and we dont want my dad to hate him. One girl i used to know pretty well was acting very weird... but my sister said there was only caffeine, no liquor. i'm not exactly a good test of the punch content, seeing i was feeling weird anyway. there were a few who werent dancing, which made me feel less weird, but i didnt know them, so it wasnt like it helped me much. it was probably a good thing i had to go home early. my sister was really nice to me- a bit too nice, pulled me over to dance with her more was needed- so it wasnt that bad.