Rule 34 Dev - 2boys absurd_res anal_penetration anal_sex animal_genitalia animal_penis anthro anthro_on_feral devilenby diphallia diphallism duo duo_focus feral fish furgonomics furry-specific_piercing gastropod genitals hemipenes hi_res male male_focus male_only marine masturbation mollusk multi_genitalia multi_penis oral oral_penetration penetration penis piercing shark slime slug suspension tail_piercing upside-down zoophilia|4726738368