There will soon be another little bundle of joy to add to the Kardashian clan! Kourtney Kardashian and Scott Disick are expecting their third child, Us Weekly reports.

Kardashian, who is already mom to 4-year-old Mason and 23-month-old Penelope, "is only a few months along," a source reveals to the magazine, while another insider adds that the 35-year-old mama and Disick, 31, will be welcoming their new addition in December.

"They don't know the gender yet," the source claims. "They just want the baby to be healthy."

Think what you want about the Kardashian family, but there is no doubt that Kardashian and Disick will be great third-time parents, as they already shower their two kids with all the love and affection they need. And it looks like the eldest Kardashian sis will follow in her mom's footsteps with an ever-expanding brood of babies.

Telling the magazine that the pregnancy was planned, a source also revealed that Kardashian wants "a handful of kids," a sentiment she echoed in a 2012 episode of 'Keeping Up With the Kardashians.'

"…[Having kids] is what life is about," she revealed at the time (quote via Us Weekly.) "I'm not going on the pill. I don't believe in it anymore!"

We can't wait to see super-cute snaps of the baby playing with cousin North West and her big sibs Mason and Penelope. Congratulations to the happy couple!