Disclaimer: I've read all 15 pages of fic requests & I'm pretty certain none fit the bill for this.

I'm looking for ANY well-written (completed) Spuffy fics where Spike persues Buffy and they both know it is wrong but she eventually gives into his charms and advances.
To clarify, I mean a fic where they are not yet together or sleeping together.
It doesn't have to have Spike as Buffy's first.
It can be a long series, or just a one-shot.
It can be 'wrong' merely because she's the Slayer and he's a vampire - or because she's with Angel/Riley, or even because they're related.

Hmmm. Well, I'm not entirely certain it completely fits your criteria, but (and toots own horn here) my story Baby Love[i]/i] might fit the bill. It's here on this site.

Niamh
And is unbelievably awesome!!! One of my very favorites!

Tara

This one might fit your criteria,

http://www.allaboutspike.com/fic.html?id=146

It is "Glimpses" by HarmonyFB. A great fic.

More Than Strangers by Sadbhyl. All Human. Available at Sinister Attraction.

http://bbfarchive.dbfandom.com/archive/0/achillesheel.html

Achilles Heel by Elizabeth, one of my favorites.

Wheels on Fire by greyangel fits the bill as well PM me if you want a copy.