"Well, what the hell. How about my little sis, Amanda? There's no way she would cooperate with your shenanigans."
"Good choice, hun!", your girlfriend chirped contently, "See you in a bit!" she exclaimed as she took a big breath, her eyes rolled back, and she fell straight back onto the bed she was sitting on.
You waited for about 40 minutes, during which you contemplated calling 911 about a 1000 times for your passed-out girlfriend, but in the end, decided to trust her.
Eventually, the door bell rang. You went to see who it was, and crazily enough, your little sister, Amanda, was standing in the doorway in her cheerleading uniform! This must have been some sort of coincidence. Maybe she was back from practice and needed something.
You opened the door with a frustrated look on your face, "Hey Amanda. You needed something?"
"Like, hi babe!" your sister chirped energetically, looking straight at you with her baby blue eyes while chewing some bubblegum, "do you, like, believe me yet? I totes had to make a super big fuss to get her out of practice and right here, y'know?"
"What are you talking about, sis? Did my girlfriend put you up to this?", you cross your arms- this is one freaky joke, "How much did she pay you? Hell, you aren't even playing the part well- my girlfriend doesn't sound like that at all"
"What? Babe, this is, like, totally me! You girlfriend! When I, like, take over peeps with a stronger personality, I totes get stuck with their mannerisms and shit, but it's still me! Can't you, like, tell?" your sister stares at you angrily, which comes out pretty cute. She places both of her dainty hands, which are tipped with long nails colored a bright white, on her hips, and her bright blue, glittery uniform is shimmering in the sunlight, "How do I prove to you who I am?"