rule 34 1boy anthro anus ass avian avian feet backsack balls ballsack baster beak big butt bondage bound claws duo feathers feet foot focus furry furry only gay gay domination genitals hi res looking back male monochrome no humans on plate presenting presenting anus presenting balls presenting hindquarters restrained restrained arms restrained legs rick griffin scrotum solo focus tail feathers talons testicles toe claws toes 9091662