Mila Kunis and Ashton Kutcher are reportedly planning to get hitched next year. However, with the latest cheating rumors surfacing, would there be a chance that the new parents will just call it quits?

Recent reports claim that 21-year-old make-up artist Linn Massinger had an "intimate" encounter with Kutcher while he and Kunis have just started dating.

In an interview with The Sun, Massinger recalled how she met Kutcher in a bar which led to their sexual rendezvous at the latter's million-dollar home.

Massinger had also provided the tabloid with photos of her and Kutcher in bed cuddling.

"When I was there he didn't mention Mila or anyone, I hope he thought I was a nice girl," she said.

Many are saying that Kutcher has been and will always be a cheater, with some coming to his defense by saying that maybe he and Kunis we're not exclusive when they started.

Kutcher's reps still have yet to release a statement.

This was not the first time rumors speculated that Mila Kunis and Ashton Kutcher are not doing well.

A source told Star:

"Ashton and Mila have been fighting nonstop; it's gotten really bad. They've always been very passionate, but now that's turning into a lot of yelling. They are both having a really hard time tolerating each other's issues."

Other publications have claimed that Ashton is not necessarily 100% honest to his fiancé. However, a source told Brit mag Closer otherwise.

"Ashton's been really honest with Mila about the breakdown of his marriage to Demi, and she knows he's completely committed to her and has grown up a lot. She says after the sleepless nights taking care of the baby, she still feels comfortable walking around in sweat pants, no make-up and messy hair in front of Ashton. He always tells her how hot she looks and gives her confidence," the insider said.

Just recently, Mila Kunis and Ashton Kutcher purchased a 7,351-square-foot mansion in Beverly Hills for $10 million.

Their new house reportedly "sits on about a half-acre of land in the hills and boasts four bedrooms and three bathrooms, and it offers plenty of privacy."

Stay tuned for more Mila Kunis and Ashton Kutcher news right here!