Bethenny Frankel is finding out that just because you can do something doesn't mean you should.

The reality star posted a picture on her Instagram account, where she squeezed into her daughter's clothes.

"This is my daughter's nightgown and PJ shorts," she said in the caption. "Think we're ready to start sharing clothes yet?"

Her followers did not find the picture so adorable.

One user said, "I'm sorry this isn't cute...a grown woman shouldn't be the size of a 4 year old especially when they have admitted to having an eating disorder in the past...!"

Another said, "I wish I was this skinny! !! That's a little crazy though."

Not everyone was quick to criticize Frankel. In fact, some actually defended her, saying that people were jealous and that she looked healthy.

For example, one commenter said, "Looks healthy to me... She's probably just petite. Geez people ! Wearing a 3XL isn't healthy either!"

Frankel also used another social media platform to defend herself.

"BREAKING NEWS! World Scandal: Former reality star, failed talk show host & cocktail maven jokes by wearing her kids' pjs! ‪#itcantbetrue," she wrote on Twitter.

She also explained to a supporter that she did it because her daughter asked her to do it, and that you "do what ur told" when you're in that situation.

Frankel has previously spoken about her struggles with food, saying that she used to starve herself and then binge, notes New York Daily News.

"I used to go out and drink and go to the deli downstairs," she said. "The next day, I would vow not to eat because last night I wasn't 'good.' Food was my best friend or enemy."

But she also said that she turned things around in 2006. She started exercising and eating smaller portions.