While his ex-girlfriend Britney Spears recently teased having twins with beau Sam Asghari, Justin Timberlake is said to be unhappy with his daddy duties while married to Jessica Biel.

Due to her busy schedule ahead of the launch of her miniseries Candy, Biel, 41, has taken care of the house.

“Jessica is busy with Candy and Justin’s been on daddy day-care duty at their place in Montana,” an insider told OK! “He is not thrilled about it.”

“He was initially all gung-ho, but that’s because he didn’t know how hard it was going to be,” the insider continued spilling to the outlet.

“Now it’s putting a major strain on their relationship because he’s just not handling the stress well,” the magazine dished.

The inside also claimed that Timberlake is used to Biel taking care of all the hard work when it comes to home chores.

“Now he’s forced to admit he just can’t fill her shoes,” the source added.