rule 34 2021 abs anthro avian balls beak big penis biped bird blue body blue jay bodily fluids bottomless chunie clothed clothing corvid digital media artwork duo erection fender mcbender foreskin genitals gesture hi res humanoid genitalia humanoid penis jay bird male muscular muscular male navel new world jay oscine partially retracted foreskin passerine penis silhouette solo focus uncut walking waving 4495212