A banner for a challenge by pezgirl:
SG1: Fragile balance
BTVS: after s7
A year after Willow does the Slayer spell their are armies of Slayers running around and she doesn't feel like that war needs her anymore so the PTB give her a new challenge; a new Hellmouth has been found in the High school in Colorado Springs (the one the Mini-Jack attends) and because they don't want to draw any suspicions from the air force; the decide that instead of sending the slayers there it would be better to send Willow there.
They de-age her to 15 years old and place her in the same high school as Mini!Jack.
Mini!Jack and Mini!Willow becoming friends and.
Mini!Jack finding out about demons and helpign Willow fight their.
Willow still having her magic
Pairings: Maybe Mini!Willow/Mini!Jack. i would prefer it really; seeing as they're both in the same boat.
If I could write I'd answer this with a story but as I can't I'm hoping to inspire somene else, as the story idea is interesting.
Disclaimer: none of the characters or images belong to me, which is a shame.