Rumors of a possible wedding began when Kutcher displayed a cryptic picture on Facebook with the words "Happy New Year Love The Kutchers" drawn in the sand.
E! News has reached out to reps for the actors.
Just last month, E! News learned the Hollywood couple was taking the next steps in planning their dream day.
Although the birth of their first child, baby Wyatt, prevented the two from completely focusing on a special ceremony, a source assured E! News that "the wedding is in the works."
"They've been focusing on prepping for the baby and the new house," an insider also revealed. "But they are really happy and in love."
That happiness began all the way back in 1998 when Kunis met Kutcher while filming That '70s Show. The actress admitted to having the "biggest crush on him," which led her to feel "nervous and uncomfortable" when she had to deliver her first kiss in front of cameras.
"I'm the first guy she kissed? Oh my god, I had no idea," Kutcher later told People. "I'm so glad I didn't know that or it would've been too much pressure." Throughout the series, which aired from 1998 to 2006, the co-stars dated other people.
Fast-forward to the spring of 2012 when it was perfectly clear that this lasting friendship had finally evolved into something very special. Although Kutcher was hesitant to say anything about the courtship after his public divorce from Demi Moore, the couple's PDA-packed trips didn't lie. These two were in love!
With a new baby and plenty of love in the house, the 36-year-old actor can't help but feel grateful for all that he has.
"The most amazing thing about having a baby is my partner, Mila. She's the greatest mom—I can't even!" Kutcher gushed to Ellen DeGeneres. "Like I go to work every day and I come home and she's perfect. And it just seems like everything went amazing."
He added, "And I know that something probably didn't go amazing, but she never complains. It's unbelievable. She's incredible."
Congratulations to the happy couple, if they did indeed tie the knot! Here's to a lifetime of happiness.