Rapper Justin Timberlake and Model Jessica Biel divorce rumors have been circulating since last year after Justin was photographed with a mystery blonde, who turned out to be a cousin of the singer/actor. The rumors get worse when people noticed the couple is rarely seen together, reports Kpopstarz. This time, however, there are reports that pregnancy plans is the reason of the couple's alleged parting of ways.

According to reports, Biel gave his husband an ultimatum saying, "If he didn't change his tune, she'd walk out for good."

"That made Justin see sense because as scared as he is to be a dad, he'll do anything to keep hold of Jessica. He knows she's dead serious about this - and he has no choice but to step up to the plate."

CelebrityDirtyLaundry described the "Total Recall" star as "not a happy wife." The post also mentioned that having a child gives the actress' the motivation to stay in the marriage.

Earlier this year, reports claimed that Biel is already desperate to get pregnant. She has also been tagging along with Timberlake while the latter was on his concert tour. While Biel is ready and excited to become a mother, her husband seemed to be too busy with his career to think about having a baby.

A source close to the couple told OK! Magazine, "Her biological clock is ticking. She's 32 and has no acting jobs lined up, so she's got a lot of time to pester Justin for a baby."

"She has been tagging along so they can work on baby-making. Justin loves the practice," the source added.

Meanwhile, Biel will join the cast of "New Girl" Season 4 as a guest. The actress will play the role of a scientist, joining the series' main stars such as Zooey Deschanel.