I'm honestly surprised this hasn't happened yet colored with permission and help from Redout.

Katty had recently been released from jail after an initially successful trial medication program, and moved in with Kitty on a temporary basis (until Katty had permanent housing.)

At Katty's insistence, the twins had a night on the town attempting to find interested men. They met with little success, because Katty's idea of a good time was an incestuous threesome with her sister. Kitty of course refused, ruining Katty's plans and causing anyone interested in one night stands to seek the attractive cougar in the other corner.

Kitty was also not as able to handle her alcohol as she thought, and after being handed repeated shots in attempt to loosen her up, became too drowsy to function, forcing Katty to carry her home.

Katty's failure to score a man and her twin's literal cock-blocking left her horny, frustrated, and so pent up she couldn't handle going the rest of the night without some form of relief at all... even her drunk and vulnerable sister would do.