Scarlet Tentacles

Scarlet Tentacles is the twin sister of Squidward and the mother of Cameron and Matthew.

Parents

 * Mrs. Tentacles (mother)
 * Jeff Tentacles (father)

Grandparents

 * Grandma Tentacles (paternal grandmother)
 * Unnamed paternal grandfather

Siblings

 * Squidward Tentacles (twin brother)

Children

 * Cameron and Matthew (sons)

Cousins

 * Unnamed cousins

Ancestors

 * Squod
 * Squidasaurus Rex
 * Squidly Tentacles
 * Hopalong Tentacles