FURVERT!

1:1 anal anthro anthro_on_anthro anthro_penetrated anthro_penetrating anthro_penetrating_anthro bear deep_rimming domestic_ferret duo larger_male male male/male male_penetrated male_penetrating male_penetrating_male mammal monochrome mustelid musteline oral penetration rimming sex size_difference sketch sliinky_(artist)smaller_male smaller_penetrated tentacles tongue true_musteline weasel