The 35-year-old star tells Khloe Kardashian that North West is often times so jealous she fedds Saint, so she stopped it.
"North West stopped that for me. She would cry so much and try to pull him off me. She was so jealous she took her little milk box and put it in my bra with the straw sticking out and she wanted to drink while he was drinking," Kim said when asked if she was still breastfeeding.
She went on to say, "This week she goes to me 'Mommy I'm not mad anymore, you can feed baby brother I won't cry' and I was like 'look honey, the milk is all dried up'"
Kim and husband, Kanye West welcomed their son Saint in December but their daughter turns three in June. Kim then says North flushed Kanye's phone down the toilet when it contained the sole recording of his new album 'Life of Pablo'.
"They could not be retrieved," Kim explained to Chrissy Teigen and John Legend who also made guest appearances on the show.
"No Apple geniuses were genius enough," Kanye added as Kim told the group "He didn't get mad".
The last episode of 'Kocktails with Khloé' airs on Wednesday, April 20 on FYI.