After seeing cute photos of JT and Mila Kunis promoting their film, I was wondering if anyone has any recs for fics where Buffy and Spike are friends with benefits that (obviously) leads to Spuffy. Something like the Arrangement by jamesgirl springs to mind, but maybe something a bit more lighthearted, if possible?

In this fic Buffy is under the assumption that they are friends with benefits.

Promised by Dorians Kitten

William knew that she considered him a friend or maybe even a big brother, but she'd promised to marry him once and he had every intention of holding her to it. Just as soon as he worked up the nerve to remind her, that is. Who says you can't find your soul-mate in preschool?

I'll Take What's Behind Door #1 Bob! by noaluvjames. (They start as enemies, then become frienemies with benefits).

To Be Or Not To Be by Paganbaby.