FURVERT!

2013 2d_animation animal_genitalia animal_penis animated animated_gif balls becoming_erect black_and_white bodily_fluids canid canine canine_genitalia canine_penis close-up crotch_shot cum cumshot disembodied_penis ejaculation erection frame_by_frame genital_fluids genital_shot genitals knot knotted_penis male mammal monochrome orgasm penis penis_shot rajii sheath short_playtime simple_background solo unsheathing