FURVERT!

abs animal_genitalia animal_penis anthro balls balls_expansion blue_hair blue_penis bound canid canine canine_genitalia canine_penis canis chain chained collar comic digital_media_(artwork)domestic_dog expansion fur genital_expansion genitals growth hair hi_res knot kooper_(koopershiba)male mammal muscle_growth navel nipples nude penis penis_expansion sammich_(artist)shiba_inu simple_background slime slime_sex solo spiked_collar spikes spitz tail transformation transformation_sequence white_body white_fur