Improved anus/butt area

So, I'm a huge oral (mostly rimming fanatic) and I think the anus area should be polished up. Right now it's just a pink "dot". Pretty boring. I think you should be able to like, maybe customize the tightness/loosness of it, as well as the color.  So if you want to select a dragon with a green anus, and it's loose, why not? And I don't mean it in a gross way. Some anuses are tighter and some are looser. If you're into rimming, you know it's hot when you see that particular area go with the motions of the tongue 😎