“Hey, wait... uh... Mark,” said Mark to his own body. “Let's talk about this!”
But, as Mark watched in horror, his old body now started randomly pushing buttons on the strange, futuristic device.
“Hey don't!” Mark cried.
“Shut up, you dorky little girl!” sneered his old body.
Mark swore if he ever got changed back to himself, he'd start treating the Heidi a lot nicer.
Before he could do anything else though, the device activated.
For the briefest of moments, Mark saw what was coming and knew what was about to happen. Before he could react, he saw Heidi (in his old body) press the Personality Swap button twice in succession – once while pointed at Mark... and once more while pointed at Jennifer, passing by out in the hall.
Mark tried to say something... but suddenly found he didn't care.
“Sheesh, you're so immature,” he found himself telling his old body. “Go play with your little toys somewhere else. I need to finish putting on my makeup.”
With that, Mark exited Heidi's room, pushed aside Jennifer, and went into the bathroom where he began primping and preening in the mirror.
Jennifer, the older of Mark's two sister, now felt compelled to come into Heidi's room and confront Heidi (still inhabiting Mark's body).
“Hey, Mark, what's that funny looking remote control you have there?” she said. “For some reason, I really want to see it. There's... something inside me that says it's real important.”
Heidi, still believing she was the real Mark, just laughed.
“Like I told Heidi, this isn't for girls. Now get lost!”
Jennifer frowned in thoughtful silence for a moment. Although she had no idea what had just transpired, she now possessed Mark's original personality... but none of his memories. She was now an eighteen-year old girl who thought and acted like a fifteen year old boy. So part of her felt deeply confused by Heidi's comment that the device wasn't “for girls.”
As for Heidi, she was now physically and mentally Mark. She had his body, his personality, and his memories. She genuinely believed she was really her 15-year old brother... however, she had no knowledge of what the device was or how it worked.
And finally Mark was still trapped in the body of his thirteen-year old sister Heidi... but he now felt compelled to behave like his eighteen-year old sister Jennifer. He still knew all about the device and how it worked... and even knew he was not in the correct body. But because someone else had used the device on him most recently, he had no idea that he now possessed his sister's personality. He believed he was actually supposed to be a 15-year old boy who wore lipstick and skirts, and acted like an eighteen-year old girl.
The three siblings, now seriously and chaotically confused, busied themselves with what they believed where their normal, morning routines until Mom called from the kitchen: “Get out to the car! It's time for school – NOW!”