Since I have only received a verbal review from picardmpc I have decided to write the second chapter.
Chapter 2: The Fight that started it all
"Alright let's go" said Goku as he and Vegeta prepared for another crack at beating Evil Boo. Then all of a sudden they heard a wheezing sound from the edge of the Lookout. Good Boo appeared from over the edge. "What, but how did you survive being eaten?"

"Sorry,"said Good Buu, "But there is no time for that story, Evil Me is about to destroy another city."

"Okay Vegeta let's fuse."

Then together Goku and Vegeta said the words to fuse them," Fuuuuuusssssssssiiiiiioooonnnnn, HA!"

They went down to Southtown and found Evil Buu powering up his energy attack he turned around and said," Oh, so Buu you weakling you survived well now I guess I'll have to finish the job, and you Z fighters you shall perish along with this weakling."

Gotenx in reply assaulted him with a barrage of punches and kicks. But Evil Buu countered with a single punch. " Haven't you fools learned your lesson yet? You can't beat me no matter how high you raise your power levels."

And with that said Vegeto (Goku and Vegeta fused) launched a super-charged Kamehameha wave (tell me if I spelled it wrong please) and hit evil Buu square in the chest and knocked him out then he grabbed his tendril and started punching him in face then he swung him around and sent him flying he was almost finished and at that moment he went to Super Saiyan 3 and gathered the spirit bomb and fired it at Evil Buu, but he dissappeared before it could hit him he dissappeared to another part of the world.

That's it for the second chapter if I get some reviews I will start immediately on the next chapter.