The Big ImageBoard (TBIB) - 4boys abs absurdres bara beard black hair blue sclera brown hair cheek bulge colored sclera covering crotch covering privates dark-skinned male dark skin facial hair fins full beard full body glowing glowing eyes hairy head fins highres implied erection large pectorals male focus male harem mature male merman monster boy multiple boys muscular muscular male navel navel hair neckbeard nipples nude original pectorals profile seanhexiao short hair size difference skinny smile sparse chest hair sparse navel hair sparse stubble stomach swimming underwater yaoi