FURVERT!

2d_animation animal_genitalia animal_penis animated animated_gif balls black_balls blur_shepherd bouncing_balls bouncing_penis canid canine canine_genitalia canine_penis canis domestic_dog erection feral genitals knot knot_in_sheath knotimations low-angle_view male mammal motion_tweening penis sheath short_playtime solo tailshigh worm's-eye_view