A/N : Finally got back around to this fic, just a short chapter but then all these back-story chapters are gonna be fairly short I think, longer chapters when I get back to the future...if that made any sense at all! Thanx for the reviews on chapter 4; fictionfreak2, tinkerbell42, SpIkEs AnGeL, SouthernRain, DestinysFate, BTVS4eva, fashiongrrl - you guys are the best, I loved all your comments and how, despite being confused, you like to pitch in your ideas about what might happen. Don't worry about influencing the story into going a different way, I have a very definite plan for this fic and it will not be changing. Just in case it wasn't totally obvious, the comments at the start and end of each chapter are in Buffy's POV, and yes William is Spike, or at least he will be...you'll see what I mean when we get to that part of the story. Anyway, here's the next chapter...and I should be updating 'Trouble With Boys' later today for anyone who is interested.

(For disclaimer, etc. - see chapter 1)

Chapter 5 : Oh Baby - 1985

Early in the year of 1985, and if the mathematical side of your brain is working today you'll realise that William, whose birth I just explained, is now four years old. It was on his birthday that further happy news was shared...

William'sparents and the couple he knew as his aunt and uncle completed another chorus of Happy Birthday and he grinned. Today William Giles was four years old and the proud owner of several new toy cars and the latest action man figure, but Mummy said the biggest surprise was yet to come.

"What's my other surprise Mummy?" he begged to know, "You said you'd tell me when Auntie Joyce and Uncle Hank got here" he complained as Jenny cut his birthday cake into slices.

"Just five more minutes, Will" she told him, "Let's get everyone a piece of cake and a drink and then I'll tell, okay?"

"Okay" he smiled as he waited as patiently as he was able and all four adults and himself were given a slice of his cake that was shaped like a racing car.

"Now, as William has been saying all day, there is another surprise and it as much for all of us as it is for him" she told her friends, smiling as Giles put his arm around her shoulders.

"What is it?" the small boy sitting beside them was desperate to know.

"You're going to be a big brother, Will" his father told him, his accent a little more refined these days as he'd gone into the world of business and found his slang and coarse tone was unsuitable.

"Oh congratulations" Joyce grinned, hugging her friend as Hank shook hands with Giles. William looked on with a confused expression.

"A big brother?" he echoed, trying to decide whether he liked that idea of not.

"Yes, sweetheart" Jenny smiled at his confusion, "In five months time you're going to have to help Mummy and Daddy look after a new baby"

Deciding that it might actually be fun to be someone's big brother, the little boy smiled brightly and hugged his mothers legs.

"We weren't going to mention this" Joyce began as the room became silent again, "because it was William's day, but...I'm pregnant too" she smiled and again there was hugging and hand shaking and congratulating all around.

"Will I be your baby's big brother too Auntie Joyce?" William asked, frowning again, and all four adults couldn't help but laugh.

"Not exactly, honey" the blonde woman chuckled, "but you can be good friends"

"At least we made it to a hospital this time" Giles sighed as he helped Jenny from the car, wondering how he was going to get William into the building too.

"Yeah, but what were the odds of this happening in stereo?" Hank almost laughed as helped Joyce out of the other side of the vehicle.

The women had gone into labour within an hour of each other, despite the fact their due dates were two weeks apart, and it was a race to see whose little bundle would emerge first. Both Jenny and Joyce screamed with the force of a contraction almost exactly at the same time and if their husbands didn't know any better they'd say they were doing it on purpose!

Several hours of pacing the waiting area later, Hank was called in to meet his daughter, Elizabeth Anne Summers and not ten minutes later, Willow Stephanie Giles put in an appearance too, much to the delight of Giles and little William.

The two little girls were placed in two little cots beside each other and as the four adults congratulated each other, William watched the tiny children. Unsure as to exactly how these things worked and which one would be coming home with him the little boy just grinned at them both.

"I'm your big brother" he told them, "Nice to meet you"

The two babies only gurgled then promptly screamed and cried in response, wanting their mothers and something to eat, no doubt. Still William wondered if it was his fault.

You starting to understand now? It should be getting a little more obvious, but still I s'pose you're thinking whilst us three kids might grow up close, I should not have mistaken William for being my actual brother. Well, it's a little more complicated than it appears, more complicated and slightly more tragic...

To Be Continued...