Anna Faris and Chris Pratt are having a tough time potty-training their adorable son, Jack Credit: Alberto E. Rodriguez/Getty Images; Courtesy of Anna Faris

Keep at it, Jack! Anna Faris and Chris Pratt are currently potty-training their son, Jack - and he couldn't be cuter! The Mom actress shared a photo of a little mishap he had on Thursday, Sept. 3.

"Potty training is going so great!" Faris, 38, tweeted at her husband, Chris Pratt. "I'm a natural!"

As seen in the pic, the couple's 3-year-old was out walking with his famous mom when he accidentally wet himself. Fortunately, he was in swimming gear. And despite the mess, he made sure to hold onto his bite-size yogurt melts at the time.

Pratt, 36, who has been on location filming his upcoming movie The Magnificent Seven, sent back the cutest message to his family.

"Those are swim shorts," he tweeted. "Put him in the pool and that's perfectly acceptable behavior. I'm proud of both of you."

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