Chrissy Teigen has joked that her daughter Luna can be "hurtful" when it comes to the star's pregnancy.
The 32-year-old model is expecting her second child with husband John Legend, 39, and admitted their 23-month-old girl can be brutal when it comes to commenting on her mum's journey.
Speaking to E! News, she laughed: "We take baths together every night and she says a lot of... she can say some hurtful things in the bathtub sometimes.
"I think yesterday she pointed at me and she's like 'mamma yucky.' I'm like, 'I know, mamma feels kinda yucky'... They're honest though these kids, they're honest."
The Sports Illustrated model also admitted she is "a little worried" about how Luna will accept the new arrival, and the idea that she isn't an only child anymore.
She added: "Just because I can see Luna...she doesn't exactly love to share until she's totally finished with something.
"I do hear that the first born tends to be excited for the new edition for maybe a day or so, they don't really realize that they come back day after day after day.
"So when she starts realizing that he's gonna stick around... maybe things will change... But for the most part I mean, I grew up with my sister around and yeah, it just becomes second nature."
Meanwhile, the brunette beauty recently took to Twitter to reveal she has put on a total of 40 pounds, but she wishes it had all gone to her bottom.
She wrote: "up 40 pounds and not one ounce went to my butt. please stop shaming the buttless, we are trying (sic)"
Chrissy then joked that she doesn't like it when other people tell her they weigh less than her.
She added: "just a heads up that when a preggo says what they've gained, you can only share what you gained if it's more. Not less. THEMS THE RULES (sic)"