FURVERT!

2d_animation 4:3 animal_genitalia animal_penis animated animated_gif balls border_collie canid canine canine_genitalia canine_penis canis collie covering covering_crotch covering_penis domestic_dog ejaculation erection eyes_closed feral frame_by_frame genitals hands-free herding_dog male mammal monochrome orgasm pastoral_dog penis sheepdog short_playtime solo spontaneous_ejaculation tail tail_motion tailwag