FURVERT!

2:1 2_tails ambiguous_gender animal_genitalia animal_penis anus balls big_balls big_knot big_penis blizzate blush brown_body bulge butt butt_ripples canid canine canine_genitalia canine_penis duo ejaculation equid equine erection feet female female/ambiguous female_penetrated feral feral_on_feral feral_penetrated feral_penetrating feral_penetrating_feral first_person_view foot_on_butt fox fox_spirit from_behind_position fur genitals grey_body grey_fur hand_on_butt horse huge_balls huge_penis humping hyper hyper_balls hyper_genitalia hyper_penis impregnation impregnation_request interspecies interspecies_impregnation knot knotted_penis large_penetration larger_female larger_penetrated male male/female male_penetrating male_penetrating_female mammal markings mounting multi_tail orgasm_face ovum paws penetration penile penile_penetration penis penis_in_vagina ripples sex side_view size_difference smaller_male sperm_cell sperm_cell_with_face sperm_dominating_ovum spots spotted_body tail vaginal vaginal_penetration