Welcome to the Katie and Sadie club.
This might be a little unnecessary, but I wish that this club would not be reported as a duplicate.
You see, this is not a Фан club или either Katie или Sadie, или Katie and Sadie's friendship, like the other two клубы which can be found when searching similar keywords. This is a club for Katie X Sadie, meaning Katie and Sadie as a couple.
Yuri, slash, lesbians, I don't care what Ты call them, just Присоединиться if Ты like Katie and Sadie as a couple.

If Ты do not like same-sex couples, или KatieXsadie in general, I suggest that Ты leave. Please do not bash the pairing...