Rule 34 Dev - 1:1 2023 abs anal animal_genitalia animal_penis anthro ball_tuft balls black_body black_fur blue_balls blue_body blue_fur blush bodily_fluids bouncing_penis brother brothers canine_genitalia canine_penis crouching crouching_cowgirl dialogue duo english_text erection fangs front_view fur gay gay_anal generation_4_pokemon genitals hand_behind_head hi_res incest kelsdungeon knot lucario lying male male/male moan muscular muscular_anthro muscular_male nintendo nipples nude on_back open_mouth penetration penis pink_nipples pokemon pokemon_(species) pubes red_penis riolu sibling simple_background sweat teeth text throbbing_penis tuft white_background yaoi yellow_balls yellow_body yellow_fur|10045225312