@REALbkBrown/Twitter

Bobbi Kristina Brown defended her slim frame after she was criticized for being too skinny, saying she takes after her mother Whitney Houston.

"I am my mothers child ! Have you ever heard of a #fastmetabolism ?" Brown wrote on Twitter. "Lol, it's incredible how the world will judge you 4ANY&EVERYthing"

The judgements came just after the 21-year-old shared a photo of herself wearing a teeny black bikini.

Read Engaged Bobbi Kristina Brown: Whitney Houston Knew We Were Going to Date

Her husband Nick Gordon quickly came to her defense.

"My baby is perfect the way she is," Gordon tweeted Tuesday.

"Working out Eating right and loving life is how my women (sic) keeps her body nobody cares that you are concerned what important is she is comfy," he added.

Bobbi Kristina Brown Tweets She Married Nick Gordon

The newlyweds are no strangers to controversy.

The pair, who grew up together in the Houston home since Gordon was 12, first raised eyebrows when they began dating soon after Houston's death.

"In fact, mommy was the one who even said that she knew that we were going to start dating," Brown wrote on Facebook in July after finally confirming rumors that she and Gordon were engaged.

Brown tweeted in January that she and Gordon tied the knot.