create implication knotted_penis -> animal_penis
Subset.
Addendum: Do not implicate animal_penis -> penis, as dildoes are also covered by this tag.
EDIT: This tag implication has been rejected because it was not approved within 60 days.
EDIT: The tag implication knotted_penis -> animal_penis has been rejected by @DanbooruBot.
Updated by DanbooruBot