"Wasn't the red pair what she was wearing before?" asked Alice.
"I think so," said Jessica.
"Then obviously I want the black pair."
"So be it!" said Jessica, handing her the black pair as she threw the red pair unceremoniously on the ground.
Alice pulled off her pants and panties, her vulva in her friends' full view for a brief moment as she pulled Katie over her loins. They ignored it completely, the thin recess of flesh they'd seen before barely registering in their minds. However, as she got dressed again, the smile that came to her face drew every eye in the room. The cackle that grew from it came to dominate the room.
"So Jessica," said Alice, "how long did you set the machine for?"
"I didn't set a time limit," said Jessica, "after all, I didn't set one for Mary, why should I have set one for her?"
"Wait... you didn't set a time limit?" asked Mary, wringing her hands. The others uniformly ignored her.
"So I can keep her as long as I want?" asked Alice.
"As long as you want," said Jessica, with a smile saying that the duration was as indefinite in her own will as in the machine.
"Hmm..."