The Big ImageBoard (TBIB) - 2017 ambiguous gender ambiguous penetrated anal anal penetration anus balls big muscles big penis black balls black wings butt countershading dong2fm dup eye contact fur genitals green eyes huge muscles huge penis hyper hyper muscles looking at another male male/ambiguous male penetrating male penetrating ambiguous membrane (anatomy) membranous wings muscular muscular arms muscular male muscular thighs nipples penetration penis pink body pink fur red background red body red nipples reverse countershading ridged penis ridiculous fit robohole simple background sitting on penis vein veiny penis wings