Rule 34 Dev - 4_fingers 4_toes abs ai_generated anthro anthro_only biceps big_muscles bodybuilder broad_shoulders calves canine clawed_fingers clawed_toes completely_nude cub cute digitigrade domestic_dog erection excessive_sweat frown furry glistening_body glutes gritting_teeth gym hard_nipples hyper hyper_balls hyper_genitalia hyper_penis indoors male male_only manly messy muscle_tone muscular muscular_anthro muscular_arms muscular_male muscular_thighs musk nai_diffusion naked nude nude_workout nudist pawpads pecs pectorals precum shameless solo standing straining strong sweating_profusely thick_arms thick_thighs veiny_muscles veiny_penis veiny_testicles weightlifting weights wide_stance young|12630166056