A bikini.

Standing naked, you wonder what to wear today. As exciting as it was to be caught in the nude the day before, that's just too much... You can't just walk around without clothes. You don't want people, especially your sister, to get the wrong idea. On the other hand, it's been nothing but exceptionally hot outside every day. People aren't wearing all that much anyway.

You pull out a black and white striped bikini. First, you tug up the bottoms to tightly wrap around your waist. You haven't worn these yet this year, and they seem a little smaller than last year, but they fit. You tie up the matching top and look yourself over.

Girls walk around like this all the time in the summer. Nobody should judge you. You just never wear this little away from the beach, so the attention might be a little embarrassing. Kinda nice too, though. The bottoms dig in the back a little more than you wish they did, but you head to the kitchen for a quick snack before leaving. The faster, the better, considering your sister will likely want to laugh at you.

You weren't wrong. You enter the kitchen to see your sister eating breakfast, and she grins at you.

"Have fun streaking yesterday, sis?" she says with a laugh.

You tell her you don't want to talk about it. As exciting as it got, it was way too intense and scary, and it was all her fault. You don't give her the satisfaction of any more answers. First the panties, then the rest. It makes you furious that she'd even do something like that.