FURVERT!

animated animated_gif anthro balls balls_expansion becoming_erect biceps big_balls big_penis body_size_growth bulge canid canine canis clothing domestic_dog drinking erection expansion foreskin genital_expansion genitals glans growth growth_sequence grubskull huge_balls humanoid_genitalia humanoid_penis looking_pleasured male mammal muscle_growth pecs penis penis_expansion retracted_foreskin short_playtime size_transformation sketch solo tearing_bottomwear tongue tongue_out torn_clothing transformation vein veiny_penis