FURVERT!

abs anthro ball_size_difference balls big_balls big_muscles big_penis canid canine canis comparing comparing_penis duo fox fox_mccloud frottage fur genitals grey_body grey_fur humanoid_genitalia humanoid_penis male male/male mammal muscular muscular_anthro muscular_male nintendo nipples orange_body orange_fur pecs penile penis penis_size_difference penises_touching red_eyes sex star_fox tora_gy vein veiny_penis wolf wolf_o'donnell