This is the moment a mischievous baby grinned with pride after stealing her dad's shirt.

Dad Ryan Goforth, 29, looked around his entire home for the piece of clothing, only to realise his daughter had been holding it the entire time.

Funny video shows Lucy Goforth, three months, cheekily grinning down the barrel of the camera as through she's immensely proud of the mischief she was able to create.

Mum Alexandria Goforth, 29, from Olympia, Washington, USA, said: "My husband Ryan and I had just got back from a trip and had laundry to do."

"So he was grabbing his work clothes and went into our room with socks and a shirt while holding Lucy and as he threw the clothes onto the bed, he only saw the socks land."

"He spun around a few times but couldn't see the shirt. "

"He ended up walking through our house in case he dropped it anywhere and couldn't find it. "

"He thought he'd lost his mind. "

"He went back into the bedroom and laid Lucy onto the bed and the shirt she was holding ended up folding on top of her!"

"That's when he realized she had been holding it the entire time."