Kourtney Kardashian Pregnant: Ready For Baby No. 4? [VIDEO]

Kourtney Kardashian and Scott Disick are reportedly back together -- and they may be planning to welcome a fourth child together.

As they continue to parent their three children, Mason, 6, Penelope, 4, and Reign, 23 months, a source claims the 37-year-old Keeping Up With the Kardashians star has "baby fever."

“Watching Blac, Rob and Dream has given Kourtney baby fever,” an insider revealed to Hollywood Life on Friday. “Now that Kourt has it again, she’s doing her best to put the past to rest and give it another shot with the man she still loves.”

Kardashian and Disick dated for nine years before their split last summer and have been co-parenting their children ever since their breakup. Now, however, as the source explained, Kardashian has babies on the brain and is ready for one more child with Disick.

“Kourtney loved growing up with three siblings and so she wants her kids to have the same experience,” the insider said. “She is ready to crank out one last child with Scott.”

“Scott has done a lot of work on himself,” the source continued. “He has been speaking with a therapist, has slowed down on the partying and is ready to give Kourtney and their kids his best effort."

What's more? Kardashian's mom, Kris Jenner, is said to be on board.

“Kris has always been a big supporter of Scott,” the insider says, “And so she has been encouraging Kourtney to make it work with the children of her father.”