That's one tiny bikini!

Kim Kardashian's parenting was once again called into question on Wednesday when her daughter North West was photographed wearing a teeny black swimsuit during a beach outing.

MUST SEE: Kim Kardashian Slams Hater Who Dissed North West's Style on Twitter!

The three-year-old, who was being cared for by two nannies and a bodyguard, had a ball playing in the surf with brother Saint and cousin Mason Disick — but her attire left fans arguing over whether or not the ensemble is age appropriate.

Scroll through the gallery below to see pics of the toddler's controversial outfit.