Post as much as you want or as little, just dont be a story hog ;)
Be as silly or serious as you want.
Dont be afraid of taking things to new directions :P
Most of all dont worry that you arent very good of a writer, i certainly am not a good writer and i dont expect anyone else to be, not that id know the difference :D

I'll start!

There once was a boy from space, he loved the thought of earth so much, he traveled there. Everything was so odd and exciting...

espically the green little people what would come and play baseball with him.

But these green people cheated with their viney tentacles covered in leaves. The boy didnt know they were cheating, he just thought he was bad at this game.
Along came a girl who scolded the green people for...

being so mean to the boy and not telling him the rules of the game. If they would have told him, then he would have known they were cheating and...

Used his space powers to beat them. The girl took his hand and they walked over to

the park bench and the girl said her name was Mandy. The boy was happy that he had met a nice person on Earth and hoped to meet many more when...

He left the park. Mandy asked the boy where he came from, and he said "space". She was baffled but decided to play along. "so SpaceBoy, have you ever been to a candy shoppe?"

The spaceboy looked at her and smiled "No but I have heard a lot about them and would really love to see one if you would be willing to show me Mandy."

Then mandy took the spaceboy's hand and they went to a candy shop, where there was taffy being pulled and lollipops in the windows but something was not quite right with this candy shop, and that was because next to the lollipops there was a

gnome, this gnome looked very evil and was sprinkling some stuff on the candy. The gnome turned and seen Mandy and the spaceboy and disappeared right in front of them and then

...reappeared down the street. The sprinkles that the gnome had placed in the display were causing the candy to...

mutate and become all rainbows and pink fluff. "ugh!" said Mandy who had reached for a lollipop and gotten fluff instead. "Hey, that gnome... I know him! He is an evil gnome who..."

stole the greatest treasure in all the land! We've got to find him, so we can have it. They say that it can...

bend the hemispheres so that they are going the wrong way! This is because....

He believes that if the hemispheres go the opposite direction he can go back in time! "We must stop him" said Mandy. Who knows what will....

happen if he actually does make this happen!" Mandy clenched her teeth and whispered to the spaceboy. "He'd probably make garden gnomes the ruling race!"

Spaceboy didn't like seeing Mandy upset and said, "Can we stop him?" Mandy looked at Spaceboy and said, "Well...

I think that if we asked my father for help he has some weapons that would be helpful." Spaceboy smiled proudly and