KOURTNEY Kardashian has left fans disturbed after admitting she wanted to breastfeed her sister Khloe's newborn son.
The 43-year-old met Khloe's second child for the first time in the season two finale of The Kardashians.
Kourtney, her sister Kim, 42, and their mother Kris Jenner, 67, went over to Khloe's house to meet the new addition to the family.
Kourtney looked at the baby in awe as Kris cradled him, saying: "When they open their mouths and just the way they smell…"
Khloe added: "Kourt's so funny," as Kourtney held the newborn and bounced him.
As the newborn stopped crying, Kris said she has "the magic touch".
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Kourtney looked down at the tiny bundle in her arms and muttered, "I wish I could breastfeed you."
She burst out laughing as Khloe said, "Oh my gosh, Kourt, let's calm down,' and added that it was time for her son to go to sleep.
Viewers were taken aback by Kourtney's behavior, with one writing on Reddit: "Not Kourt trying to breastfeed Khloe's son!"
Another added: "I get she's broody but the breastfeeding thing was a little much," and a third agreed, "Ya I thought it was inappropriate."
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Khloe has two children - daughter True, four, and a baby son - with her ex Tristan Thompson.
She welcomed her son via a surrogate in August.
Earlier this week, Khloe admitted she won't let True sleep over at Kourtney's house.
The Good American founder said she didn't want her eldest child being "corrupted" by Kourtney's three older kids.
Khloe made the admission during a chat with Kourtney for magazine.
'NOT MY THING'
She said: "I hate slumber parties. I hate sleeping with people. I like my own space. As a kid, I hated slumber parties. It’s not my thing.
"I’ll go, I’ll participate, and then when it’s bedtime, I’m out of there. So the best slumber party is the one at my house."
Kourtney asked: "Is that why you won’t let True sleep over?"
Khloe replied: "Well, no, just True is too young to sleep over. And she doesn’t want to.
"She likes her space and I don’t want her to get corrupted. Kids are older, and I’m like, 'No, we’re good.'"
Kourtney has three kids - Mason, 12; Penelope, 10; and Reign, seven, with ex .
She is also stepmother to her husband Travis Barker's children - Landon, 19, Alabama, 16, and his former stepdaughter Atiana de la Hoya, 23.
Kourtney and Travis, 47, have shared their struggle to conceive their first child on her family's Hulu reality show.
IVF JOURNEY
The two tried using in vitro fertilization (IVF) eight months ago, but did not conceive during their first round.
Last month, Kourtney said that undergoing IVF has taken a toll on her body "mentally and physically."
During an episode of The Kardashians, she said it has "taken a lot" for her to feel comfortable with how her body looks now, especially as the procedure prompted her to gain weight.
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Kourtney and Travis have stopped IVF for now, but are still hoping to welcome a child.
She said: "Obviously, we wish that. If it’s in God’s plan, then it is.”