HEY (So this is like the fourth time I wrote on your wall and I don't mean to be a stalker buuuuuut) I FOUND OUT KYLE'S AGE.
Chapter 3, page 4.
Shawn asked if Kyle was forty, because Austin called him 'kid'. Kyle then corrected him, and said "Twenty-nine", and Austin added in that Kyle was five years younger than him, so that would make Austin 34.
I knew I stated his age somewhere in the story, I just couldn't remember where :3