@rozzak not as sexy as people would like. A cloaca is a single hole that funnels literally all waste as well, so you'd be slidin your appendages in bird poop remnants. Unless you're into that kind of stuff of course.
@Alemoa
Yes, that is a shot of dragon girl bootay.
@Rozzak
Same reason varying degrees of people are into BDSM, hairy, voyeurism, golden showers, furries, pregnancy, humanoid figures, non-humanoid figures, etc...