Rule 34 Dev - 2024 after_exercise animal_genitalia animal_penis anthro anus ass balls biceps big_balls big_butt big_muscles big_penis bodily_fluids canid canine canine_genitalia canine_penis canis clothing dobermann domestic_dog eyebrows footwear fur genitals gym hair hamstrings hand_behind_head hi_res illbarks inside knee_highs knee_socks knot legwear looking_at_viewer lying male mammal muscular muscular_anthro muscular_male nude on_back pecs penis perineum pinscher presenting presenting_anus simple_background smile socks solo spread_legs spreading sweat teeth thick_thighs tuft weight_bench weights|12021475048