Blake Lively and Ryan Reynolds were victims of toilet prank at the hands of their children

Blake Lively joked she is regretting teaching her children how to "read a calendar" after she was victim of a toilet prank on April Fool's Day.

The 38-year-old actress and her husband, fellow actor Ryan Reynolds, have four children together, daughters James, 11, Inez, nine, and six-year-old Betty, as well as three-year-old son Olin.

And the It Ends With Us actress was caught out by the youngsters on Wednesday (01.04.26) when she went to use the loo only to discover it had been covered in plastic wrapping, and decorated red.

Blake took to Instagram to share a snap of her kids' playful prank, and she wrote in the caption: "I knew I never should’ve taught them how to read a calendar."

Ryan previously admitted his daughter James had watched his Deadpool and Wolverine movie when she was nine years old - and said she was "sort of OK".

The 49-year-old actor let his oldest girl watch the film ahead of its release, despite its adult content, which led to it getting an R-rating that Ryan said was the result of the movie sticking to the "authenticity" of its raunchy, violent roots.

He told People: "My nine-year-old saw the movie, and she’s sort of okay! (But she) loved it."