You'll take her to the party

The last thing you want is to be encumbered by your bratty little sister. The party you're invited to is thrown by one of the frats, and most of your sorority sisters will be there. It's a big event, and lots of fun, and you don't want to be baby-sitting Lori, particularly when she's acting like this.

On the other hand, you don't want to leave her alone in your apartment. You don't really trust her and you're not sure what she might do. Calling your parents to come get her would just lead to a big emotional scene, with Lori putting on her best crying and shouting performance, and you're simply not up to that. Besides ruining your evening, you just don't want to get in the middle of the bullshit between her and your parents. Sighing, you realise you don't really have a choice.

"Alright, you can come with me!" you say with exasperation as Lori claps her hands excitedly. "But you better behave yourself. If you embarrass me I'll kill you."

"Don't worry, I'll be good," Lori says with an impish grin that worries you as you head to your room to start getting ready.