Rule 34 Dev - abs anthro biceps bulge claws clothed clothing growth jockstrap jockstrap_only male muscle_growth muscular muscular_male muscular_young nipples pawpads pecs solo steroids syringe topless underwear underwear_only vein veiny_muscles young young_anthro young_male oouyuki_benten canid canine canis domestic_dog mammal hi_res|20310378480