Buffy, Tara, and Spike get turned into the opposite sex- FOUND!

I think I read it on Blondie Bear(what used to be a fan fic archive). I don't remember much except for what was in the subject. The thing I remember most wasn't about the Spuffy aspect, but the Tillow. Tara was very uncomfortable as a man as she had never had sexual intimacy with a man. There was a chapter which solely focused on her discomfort with it and then Willow helping her. Thank you!

Pretty sure what you're looking for is 'Impossibly Delightful Fetish' by Sadbhyl. Sorry I don't have the link, but that should help to find it!

Impossibly Delightful Flesh by Sadbhyl is available at Sinister Attraction.

Yay! Thank you guys! I absolutely adore this forum. You're all wonderful.