rule 34 abstract background adult lore anthro armpit hair balls bodily fluids body hair dj obrien ear piercing erection exhibitionism felid foreskin fur genital fluids genitals hair humanoid genitalia hybrid male mammal muscular muscular anthro muscular male nipple piercing nipples nude obrien artist open mouth pantherine peeing penis piercing pubes simple background solo teenager tiger tongue tongue piercing urine watersports young 7910244