In a seemingly normal home, a brother and sister find their deepest desires awakened by an unusual source - their pet ducks. One fateful night, as they tend to the feathered creatures, their hands brush, and a spark ignites. The sister, filled with a sudden urge, whispers, "Let's fuck like the ducks do." The brother, equally aroused, agrees, and they embark on a secret, kinky affair, their lust fueled by the innocence of their avian companions.