Rule 34 Dev - abs animal_genitalia animal_penis anthro athletic athletic_anthro athletic_male auto_penis_lick autofellatio balls beach biped black_nose bodily_fluids butt canine_genitalia canine_penis claws erection fingers fur genitals grey_body grey_fur hand_on_head knot licking male masturbation nude nude_beach open_mouth oral oral_masturbation outdoor_nudity outside pecs penile penile_masturbation penis saliva saliva_on_penis saliva_string sand sea seaside self_lick sitting sky solo teeth teeth_showing tongue tongue_out vein veiny_penis water virtyalfobo riley-doge canid canine canis domestic_dog german_shepherd herding_dog mammal pastoral_dog 2021 4:3 digital_media_(artwork)|13178220405