Rule 34 Dev - 2024 anthro ass bear belly biceps border bulge chest_tuft closed_eyes clothed clothing detailed_bulge flexing flexing_bicep flexing_pecs grin hands_on_hips hi_res jockstrap jockstrap_only male mammal manly mature_male musclegut muscular navel nipples open_mouth pecs simple_background slightly_chubby smile solo standing tail tail_motion tailwag topless triceps tuft underwear underwear_only white_border zcdartz|13963332848