Rule 34 Dev - 2015 animal_genitalia animal_penis anthro anthro_on_anthro ass athletic avian backsack balls barefoot beak bed better_version_at_source biceps big_balls big_penis bird black_body black_penis blue_body blue_eyes blue_hair blue_tongue duo equine_penis erection feathers hair hi_res horsecock huge_balls huge_cock humanoid_penis hyper hyper_balls hyper_penis justmegabenewell kneeling licking lying male muscular nude on_back on_top open_mouth oral penis penis_lick precum retracted_foreskin sex sitting smile straddling thick_penis tongue tongue_out uncut vein wafflebird white_body yaoi yellow_eyes yellow_tongue|2738059808