I had a girlfriend who loved to be fisted and shit all over herself while I fisted her and fucked her ass. We would rub the shit all over her body while I pounded her hole. It was pretty sick, but I think that's what turned us on so much - the thrill of going completely over the top. She also like having me piss inside her pussy and ass. So, yes, there are heteros who also love scat/w/s

FYI - with reference to some of the comments made earlier, "open-minded and acepting" means not being critical of other peoples choices. Be nice . . . I'm sure you wouldn't like it if people told you your sexual preferences made them sick.