A/N – This story is portraying J.K Rowling's plot, just with 2 extra large role characters. Harry has a twin brother called John Potter, and Dudley has a twin sister who is a muggle born witch, called Delilah Dursley. Different character pairings. Don't like? Don't read!

IF HARRY POTTER HAD A BROTHER : PROLOGUE

It was a typical night on Privet Drive and an aged man with a long beard and bright red attire appeared to be taking a casual stroll.

Nearby, an inquisitive tabby cat approached the old man.

To any onlooker this would appear to be a perfectly normal scene, until something extraordinary happened.

"I should have known you would be here. Professor Mcgonagall".

This is where events that were somewhat... unusual began to unfold.

Before the old man's eyes, the tabby quickly morphed into the form of an aging woman with a stern face and hair tied into a tight bun.

"Good evening professor Dumbledore. Are you sure they should be left with these people? I've been watching them all day, they shouldn't be the ones to look after the boys, they are the worst sort of muggles imaginable! I would be surprised if they could look after their own children! They really are-"

"The only family they have left, plus it would be better for them to grow up away from their fame. Come now, Hagrid will be along soon."

"Do you think it wise, to trust Hagrid with such an important matter?"

"Ah Miverva, I would trust Hagrid with my life."

A motorbike engine hummed in the distance, gradually growing louder, and soon enough, a headlight appeared in the sky, followed by motorbike carrying a man of almost giant proportions, who in turn was carrying a pair of recently orphaned wizards.

"Professor Dumbledore sir, professor Mcgonagall. The little tykes fell asleep as I passed over Bristol"

"Thank you Hagrid, and may I inquire as to where you got that motorcycle from?"

"Young Sirius Black lent it to me! I was a little surprised, he said he didn't need it any more, he loves this mototcycle. Anyways, here they are, all safe and sound."

Hagrid handed over the two infants to Dumbledore, who carefuly placed them on the doorstep of number 4 Privet Drive, along with a letter, explaining the tragic events that had just ocurred and what the residents were to do with the babies.

A large, rough sounding sob emanated from Hagrid, while Mcgonagall tried to put a comforting arm around his hulking shoulders.

"There, there, Hagrid, we will see them again, but for now we must go back to the castle and all will be explained when they turn eleven."

The trio left a note at the doorstep of number four Privet Drive, and the last words the two infants received were:

"Good luck"

"You're going to need it."

A/N - Reviews please, there will be more :-)