There may be another baby on the way for Kourtney Kardashian and Scott Disick!

After In Touch previously reported the couple was secretly hooking up, a source exclusively revealed to the mag a new addition may join the brood sooner than later.

MORE: Jana Kramer Hints at Mike Caussin Cheating Prior to Split — See the Clip!

"They aren't using protection," the source revealed about the couple's hookups, adding the possibility of baby No. 4 is a "real possibility."

kourtney kardashian and scott disick
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The couple, who split last year, share children Mason, 6, Penelope, 4, and Reign, 1. The family is currently enjoying a family vacation in Florida, so a possible reconciliation may be in the works, too.

For more on Kourtney and Scott, pick up the new issue of In Touch, on newsstands now!

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