FURVERT!

5_fingers abs absurd_res anthro anthro_on_anthro areola athletic athletic_male balls balls_touching big_balls big_penis blue_eyes brown_body brown_fur canid canine canis countershade_fur countershading domestic_dog duo equid equine erection fingers fur genitals glans hair hi_res horse hybrid_genitalia hybrid_penis interspecies male male/male mammal medial_ring penis serratus tail tongue tongue_out vein veiny_penis zerolativity