Keeping Up With the Kardashians has many moments that will be down in the books. But Kim's ugly argument with her sister Kourtney was just brutal. She claims Kourtney is the "least interesting to look at." This is because Kourtney didn't want to be in the family photo shoot the entire day since she had children and was focused on being a mom. Though Kim read her good, Kourtney has some stand-alone one-liners as well.