Ookami-Ranma and Akane

I'd really like to know the story behind the following picture. (The thumbnail is a link to pixiv.)

http://www.pixiv.net/member_illust.php?mode=medium&illust_id=32933057

It's not just a question of what left Ranma in this half-wolf half-human state. Is he a half-demon like Inuyasha? A were-wolf? Some different Jusenkyo curse? But the even bigger question is what got into Akane to do this outside on the lawn? That's assuming she's willing, which she appears to be. Although I guess it could have started out with her unwilling and Ranma tearing off all of her clothes, and now she's just gotten very into it and lost control.

An interesting point that this brings up is that I don't really think of it as full-on bestiality when I see fan-art or a story involving sex between one of the female cast and a cursed male like P-chan or panda-Genma. In fact, handled right that can be downright arousing. I rather enjoy the image (I have it somewhere) of panda-Genma giving it to Kasumi.

Another thing I'd really like to see — which I don't think I've ever come across — is a hentai image of Shampoo in her cat form being raped by a tomcat in an alley or similar, while other toms are looking on waiting for their own turn. With the typical anime tear blobs at the corners of her eyes. I think that would be really hot so long as the female cat is recognizably Shampoo. Or possibly without the rape — she's just gone into heat in her cat form and can't control herself.