FURVERT!

animal_genitalia animal_penis balls black_body black_fur bodily_fluids border_collie brown_background canid canine canine_genitalia canine_penis canis chess_(mintyderg)collie countershade_torso countershading domestic_dog erection feral fur genital_fluids genital_focus genitals gradient_background herding_dog hi_res knot knotted_penis male male_feral mammal mintyderg pastoral_dog penis penis_focus precum quadruped sheepdog simple_background solo throbbing throbbing_penis vein veiny_penis white_body white_fur