rule 34 2015 animal genitalia animal penis anthro arm tattoo balls bird blue eyes bluekyokitty blush bodily fluids canid canine canine genitalia canine penis canis clenched teeth digital drawing artwork digital media artwork domestic erection flat colors floppy ears full length portrait genitals hi res humanoid hands hunting labrador male mammal mastectomy scar nipples nude penis pink blush pink nose pink scar plantigrade portrait retriever running scar sebgo simple background solo sweat sweatdrop tail tattoo teeth trans lore trans man lore triforce tattoo 8357142