A 19-year-old narrator visits to meet newly discovered relatives in Stony Creek, Ontario, including her Aunt Cathy and three cousins. She quickly gets along with the twin sisters, Leah and Naomi, but becomes increasingly uneasy around their older brother, Jay.
Despite his initial charm, Jay's intense gaze, his suggestive comments, and his deliberate touching make the narrator feel as if he is "grooming" her for predatory, incestuous reasons, an intuition supported by what she knows of his drug use and later confirmed when she hears her aunt upbraiding him, telling him to "leave the girls alone." The narrator feels preyed upon and seeks comfort and safety by climbing into bed with the twins.
I always thought twins could be a good place for an incest based story, or the old Elvis movie Kissing Cousins I think it was called could be examined.