Jon decided that he wanted to swap multiple people, not just two. He also decided to have the swap happen every day, just to make it more interesting.
"I wish that for the next ten days, once every day personalities would be swapped between Jon Gibson, Steve Farber, Leonard Drullers, Biff Meadows, Jay Duncan, Mike Matthews, Trevor Blake, Zach Jones, Derek Lettman, and Carl James - in that order."
(The order means that Jon will start with Steve's personality, Steve with Leonard's personality, Leonard with Biff's, etc. Finally, Carl will have Jon's personality.)
The guys were:
Jon Gibson: The one making this wish. Oh, and best friends with Karyn Black.
Steve "The Stud" Farber: Infamous womanizer, in love with himself.
Leonard Drullers: Overweight and unshaven nerd boy, who's into sci-fi, comics, and RPG's.
Biff Meadows: The captain of the football team and Sarah McMillan's boyfriend.
Jay Duncan: Thin science geek with thick glasses. He's very smart and also head of the chess club.
Mike "The Moose" Matthews: Hulking linebacker in the school football team, built like a moose and just as dumb.
Trevor Blake: Goth boy.
Zach Jones: Typical teenage guy. A bit of a class clown.
Derek Lettman: Emo boy.
Carl James: Band geek. Thin, pasty skin.
The stone glowed, granting Jon's wish.