Spike teaches Buffy about sex

Hello. I remember reading a fic where Buffy was dating Cordelia but they broke up. Spike recently got dumped by Dru. It was basically an AH P w/o P where Buffy wants to experience hetro sex and she and Spike do it every which way. They end up dating but trying to hide it from there friends for awhile. Does this ring any bells? I cannot remember the name of it or who wrote it.

Thanks.

Is it Pagan Baby's To be or not to be?

Yes, that's it. Thank you!