Rule 34 Dev - 1boy 2023 accidental_masturbation anthro armpit_hair barazoku baseball_cap bear belly biceps big_muscles big_penis bodily_fluids body_hair bottomwear breath burley_(ara_chibi) clothed clothing deltoids dripping dumbbell emanata english_text erection erection_under_clothing exercise exercise_equipment footwear fur genital_fluids genitals gym hat headgear headwear hi_res humanoid_genitalia humanoid_penis inside male male_only mammal masturbation motion_lines musclegut muscular muscular_anthro muscular_male nipples otternito pecs penile penile_masturbation penis poking_out polar_bear precum precum_drip precum_string public_masturbation quads sexercise shadow shirt shoes shorts sitting socks solo sweat tank_top text thick_thighs topwear tuft url ursine vein weight_machine weights workout|8340628280