For those who love adult animation such as Fritz the Cat and current ones like Helluva Boss, you will find out that there were other entries into the medium done in the early 2000s by animator Olaf Encke with King of Fools and Judas & Jesus, the former being less involved with shock value and blashpemy, and quite more entertaining in my opinion. As described on its IMDb page, "A frog tries to impress a shapely gazelle by transforming into various animals, each with a different attempted appeal." All this while she is quite very naked and very shapely as well.

You can find both uploaded in youtube of all places, but not sure how long they remain there with all the nakedness, sexual intercourse, and all that stuff that will make one blush just by watching. If you are not that offended by such things you could check out both, but I do recommend King of Fools at the very least.