FURVERT!

3_toes 5_fingers abs alternate_species anthro arody balls barefoot biceps big_muscles big_penis biped bird_dog black_claws black_nose blonde_hair bottomwear canid canine canis claws clothed clothing domestic_dog erection feet fingers flexing foreskin fur furrification genitals golden_retriever growth hair hand_behind_head humanoid_genitalia humanoid_penis hunting_dog johnny_test johnny_test_(series)male mammal merging muscle_growth muscular muscular_anthro muscular_male nipple_outline open_bottomwear open_clothing open_pants pants pecs penis penis_poking_out penis_through_fly pink_penis plantigrade retracted_foreskin retriever sharp_teeth shirt shorts signature simple_background solo standing teeth tight_clothing toe_claws toes topwear torn_clothing transformation unzipped vein veiny_penis yellow_balls yellow_body yellow_fur zipper