I need the names of the 2 Blues singers who sing the song "DIRTY WOMAN"?

I keep hearing it on the Blues Station here in Baton Rouge. The hook goes something like "You've got a dirrrrty woooman, but she shonuff, Yeah she Shonuff good to me"...They talking about how they hooking up with this woman who's having sex with them both..Its a great song, but all I can really remember about it!!