i'm confused

okay i know this will sound really really stupid but i do not get how you co-write. like how are you supposed to have two people write the same story does it go on both of your pages or just the owner . and everything else I'm just confused so if you could message me or comment me to fill me in it would be appreciated. i am a blond when it comes to these things. because i would love to do a co-write it sounds fun so yeah. okay so my blog entry is too short so ima keep typing til it lets me post lol