Captain Jack Sparrow and Sasha are, believe it or not, littermate brother and sister. They were living the cushy life in Newport Beach CA when their humans decided to have a baby. Not long after the baby was born, it was determined that the baby was allergic to the cats, and Jack and Sasha were banished to live in the basement. A pretty big basement but still a bit of a shock to two cats that had previously had the run of the house. They weren't played with - they had to entertain themselves, and just basically became second tier citizens in their house.
Fortunately the humans realized that this was not fair to the cats (either that or they tired of constantly having them shaved due to their long hair) and contacted Helping Persian Cats in Southern CA. Normally this group places their rescues in foster homes until they are adopted but their owners were determined to have Jack and Sasha adopted together and kept them in their home (basement) while HPC looked for a new owner.
They were adopted by a great person, whose elder cat had passed away few months earlier and who was really missing the companionship of a cat.