Disclaimer: Joss Whedon and J.K Rowling own any and all rights to Buffy: the Vampire Slayer/Angel and Harry Potter. Any plot that I use is purely my own, and any events, people or locations named herein are works of fiction, and any relation to said things is purely coincidental or searched for by public domain.
Elizabeth "Buffy" Potter was considered very weird by every child, often seen wandering in dark alleyways, and occasionally getting into fights with grown ups, and had even been seen, more than a few times, muttering under her breath about Vampires.
In an effort to make themselves look normal, the Dursley's took the blonde haired girl to several psychologists.
Their response was that she had too much pent up energy, which is why she was awake every night, wandering around at all hours.
So they took her to several Martial Arts schools, and it only took her several months to learn and master most of the schools.
The teachers had said that it was like she was just relearning what she had forgotten.
At five, she was very easily one of the best Martial Artists in her age class.
Since she took gymnastics and dance lessons, again paid for by the Dursley's in an attempt to get the child to go to sleep of a night time by physically exhausting the girl, she was extremely flexible, agile, nimble, and moved with a gracefulness that many lacked.
Of course, when the petite girl had launched herself at a man when they were shopping of an evening in a populated street mall, Petunia had been thoroughly humiliated.
Further examinations, plus going to a medical professional, got an explanation of her being so energetic and filled with adrenaline, that she needed to work it off even more.
At a loss of what to do, the Dursley's pulled her out of regular school, and had her training every day for dance, gymnastics and Martial Arts.
It took a while to find the right balance, especially with her growing appetite, which was already as much as Vernon could eat in an entire sitting, despite it being filled with enough fatty foods to cause a horse to have a heart attack.
Even more concerned, since, while they did resent, hate and fear the girl, they didn't exactly want her to die (if for no other reason than the money that they had spent on her would be wasted if she were to drop dead), it was actually found out that her metabolism worked much better than the average person, and with her active lifestyle, she'd need to be eating a lot of fatty foods if they didn't want her to starve.
By eight, she was doing gymnastics on the international stage, which the Dursley's felt was a very good investment for all the trouble that she had caused, and after winning the national Martial Arts tournaments, she had been selected for a future international competition, for when she was fourteen, to go to the Olympics.
Dudley, not to be outshone by his 'freakish cousin', had dedicated himself to boxing and athletics, and had found his calling in shot-put, discus and the javelin.
And Buffy often wondered why they reminded her of her father.
It usually occurred right around when she caught Vernon staring at one of his new young secretaries butts, or taking a glance at their chests, usually at their deep cleavage.
She still wondered, however, why dying had to be so … non-permanent.
She'd already died, like, five or six times.
How many more times was she supposed to die, exactly?
That thought, along with several other random thoughts, crossed her mind while she was headed to Barcelona, Spain, to get used to the summer heat before she attended the Olympics, there, next year, with the Dursley's riding as her family and 'emotional support'.
She had no idea that, in leaving for the trip with the Dursley's, she'd not gotten a very important letter.
When they got home, two weeks later, however, the entire house would be filled with them.(-=|End Chapter|=-)
Honestly, the whole Slayer Essence boosts the already incredible physical abilities that Buffy had, which is cheerleading, which is equal parts gymnastics, dancing, and weight lifting, and Martial Arts can easily be interpreted into a dance, of sorts, so my theory is that, after being made a Slayer, any girl whose skill sets are physically demanding, like cheerleading, would be a world class athlete without any professional training as soon as they get hit with the magical whammy. Most cheerleaders, while not world class athletes, are damned close, especially in gymnastics, since you have to be flexible, have strong muscles, and a very good spatial awareness to be an accomplished cheerleader, which is essential in being a Martial Artist and a gymnast in the first place.
This, along with the previous stories, belongs in my Scoobies go Magical series, which is a plot bunny I had rattling around in my mind, and others were simple concepts from the original Glory Potter storyline that I had put up, and anyone can pick up the story if they leave a link to the story in the reviews.