rule 34 3d absurd res alternate form amy rose android anthro anus ass balls black sclera blender software blue eyes breasts canid canine digital media artwork duo eulipotyphlan fox ftg crossgender fti crossgender futanari genitals green hill zone gynomorph gynomorphmale hedgehog hi res imminent anal intersex intersexmale legs up machine male mammal metal amy metal tails metallic body multi tail nipples outside penis presenting presenting anus robot rule 63 sonic series tails twintailssfm 4519747