Rule 34 Dev - 2020 3_heads animal_genitalia animal_penis anthro asian_mythology balls big_balls big_penis black_penis canid canine canine_penis canis cerberus detailed_background diphallia diphallism dobermann domestic_dog dragon duo east_asian_mythology eastern_dragon european_mythology fellatio feral floor_mat genitals greek_mythology grey_body grey_scales hemipenes hi_res huge_balls huge_cock hyper hyper_genitalia hyper_penis knot long_body lying male male/male mammal multi_genitalia multi_head multi_penis muscular muscular_male mythology naga on_back oral pagoda pattarchus penile penis penis_on_head pinscher reptile rug scales scalie serpentine sex snake tail_ring tochka vulniir|4244483984