Forever Entwined: Elena's cousins?

Imagine a world where Isobel Flemming had a twin sister, Renee Flemming. This alternate reality unfolds with Renee marrying Charlie Swan and giving birth to Isabella "Bella" Swan on September 13, 1987. Following her divorce, Renee's life takes a dramatic turn when she meets a charming blonde stranger, resulting in the birth of her second daughter, Alexandra, on February 14, 1991.

As fate would have it, a mysterious woman appears at Alexandra's birth, attempting to claim the baby. In a surprising move, Renee invites the stranger to stay and assume a maternal role, filling the void left by her own mother's passing.