"Nothing"
Buffy and Giles are training, when BAM, smut happens!
NC17

"Nothing Again"
Buffy and Giles' one time thing happens a second time... and emotions come into play.
NC17

"Nothing- Yet Again"
It happens AGAIN and thinks get even more confusing for our watcher and slayer.
NC17

"Without Nothing, Nothing Changes"
The gang finds out what's been happening between Buffy and Giles... and the two of them find out what they really feel as well.
NC17