Assertion: duck's vagina | /r/HasProperty | twisted
Facets:
Source sentences:
text: According to the National Geographic article "Ballistic penises and corkscrew vaginas -- the sexual battles of ducks," female ducks have a long and twisted vagina that features a number of spirals and dead-end pockets.
text: Their vaginas are long and twisted, complementing the male penises, but are lined with dead-end tunnels, pockets, and spirals that curve in the opposite direction.