Fights between siblings are most often the most intense type of altercation out there, as was seen on Thursday night's no-holds-barred premiere of the new season of Keeping Up With The Kardashians.And Rob Kardashian, brother to Kourtney, Kim and Khloe Kardashian, chimed in ahead of the show on Twitter with a somewhat amused jab likening his two oldest siblings to a different scandalous reality program, The Bad Girls Club.'My sisters forgot we were filming#KUWTKand thought it was bad girls club,' the 33-year-old father of one wrote about Kourtney, 40, and Kim, 39, along with two crying laughing emojis on Thursday night.
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