Ashton Kutcher and Mila Kunis are rumored to be expecting twin children.

Less than a year after giving birth to the couple's first child, several media outlets are reporting 31-year-old Kunis is now set to add two more additions to the growing family.

"There have been so many hints," a source told OK magazine. "Mila is tired all the time now, for one thing. And she gets hungry really quickly, and if she doesn't eat right at that moment, she gets super crabby."

The source also added the number of foods Kunis now craves are on the upswing and she has put an end to many of her strenuous workouts and to alcohol completely.

"She's once again not drinking any alcohol at all, not even wine or beer," said the source. "Instead, she's sticking with tea and sparkling water. But when her friends ask her why she's not drinking, she just responds with a grin."

According to the magazine, both Kunis and Kutcher are aware of the pregnancy, but have not undergone any tests to learn the sex of the babies.

HollywoodLife reports Kutcher himself is a twin and is eager to have a boy. The couple is also reported to have settled on the idea of having a family of three children.

"They think three kids is the ideal number, and they like the idea of having them quickly, rather than waiting years to get pregnant again," said a source.

During a recent appearance on "The Ellen DeGeneres Show," Kutcher told the host he and Kunis pride themselves on being hands-on parents.

"We just want to know our kid," he said. "We want to be the people that know what to do when the baby's crying to make the baby not cry anymore. I think the only way to do that is by being the one who's there."