Kim Kardashian Reveals the Bizarre Way She Had to Breastfeed Saint Because North Was 'So Jealous'

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Kim Kardashian West says her 1-year-old son, Saint, is her "twin personality," while her 3-year-old daughter, North, is just like her dad, Kanye West.

On Thursday's episode of The Ellen DeGeneres Show, the 36-year-old reality star opened up about what it's been like raising her two children. "[Saint] is so sweet," Kim gushed. "He's such a good, good boy, such a good person."

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She also revealed that North can be quite a handful around her little brother. "North just beats him up all day long, and he doesn't cry," Kim quipped. "She's just awful. She's so jealous. I thought it was a phase and it's not going away."

The Keeping Up With the Kardashians star recalled that when she was breastfeeding Saint, North was so jealous that she had to put a milk box and a straw on her other breast and feed her daughter at the same time. "The things you do," she joked.

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Kim is busy planning Kanye's upcoming 40th birthday in June, and admitted that the "pressure is on," given how good he is at birthday surprises for her. While she didn't disclose what she had in mind for the rapper's big day, she did say she was thinking of doing something "intimate" and "not too crazy."

This week, Kim and sister Kourtney Kardashian have been enjoying a kids-free vacation with their gal pals and turned heads with their seriously sexy swimsuits. Here's a look at their scantily-clad beach styles:

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