This story is where you crossover whatever you want! If you do not watch a programme/movie/game/comic that is here, please explain and it'll be fine if you don't use those characters.
So, I start off:
Harry was very busy. Hermione was too. The reason they were so busy?
Snogging.
Suddenly, for no particular reason at all, a girl with long brown hair and pretty blue eyes appeared at the foot of the girls dormitories stairs.
"Hi, Hermione!" Called the girl. "What do you want to happen today?"
"Oh, Hi, H/Hr," Hermione murmured through the snogs. "Erm...could you make me more beautiful? I mean, well, I'm so...bushy-haired and bucktoothed. The hair's getting in the way of this...snogging, and my teeth are stopping me snogging as much as I'd like to."
Harry broke away.
"Who's H/Hr?" He asked.
"Oh, it's just the author."
Several glitzy powder puffs appeared and attacked Ron out of the boy's dorms, him screaming, "The powderpuffs want me to tap dance!"
"You see? I typed that into the story."
Then great big clouds of televisions and pencils appeared and when they faded away, lots of different people were there, with laptops and evil looks on their faces. Along with a TARDIS, the Tenth Doctor and Rose.
"Ahhhhh, what the f-"
Harry turned into a pink lion for a second and the last word was cut off by a roar. Then he changed back.
"Uh-uh, no swearing, Mr., or you could end up in Slytherin. Oh, and Hermione, you got it wrong, I'm one of the authors. Let me introduce you to the rest of them."
"This is going to be one *roaring* long school year, I guess. And hey, stop with the roaring!"
"Not until you stop swearing," H/Hr screamed, and sent the thousands of crazed authors after him.
"Hey, what about me?"
"Oh sorry Hermione! I left you behind didn't I? Here."
With a tap on the keyboard, Hermione's hair became long and curly, and her teeth reduced, and she had an amazing figure.
"Thanks," she said. And Hermione apparated after Harry with a puff of pink glitzy smoke and yelled, "Thanks for the glitzy smoke, too!"
H/Hr smiled and muttered, "Let's begin!" and ran after the crowd of authors. Whilst Rose just said, "Hey, Doctor...have any idea why we're here?!"
The Doctor shrugged and grinned. "Nope." Then ran his hand through his hair and proceeded to head towards the portrait hole and after Snape, just to find out if he was a Krillitane or Slitheen or The Wire.
So? Get cracking! You have your own character in the story, you can do whatever to the characters! And add in a film or programme or game or whatever and cross it all over!