Baby drama!

In this sneak peek of the fourth season premiere of Keeping Up With the Kardashians (airing Sunday on E!), Khloe Kardashian angrily confronts Scott Disick, the father of Kourtney Kardashian's baby (due this month).

Khloe accuses Scott of intentionally getting her sister pregnant so she wouldn't leave him. (Kourtney and Scott reportedly broke up in January after she accused him of cheating but got back together after she learned she was expecting.)

"You thought she was going to leave you, so that's why you knocked her up," Khloe screams at Scott.

She later adds, "You wanted to just keep her for 18 years and not let anyone else have her."

Scott shoots back: "18 years? I want her for eternity."

Khloe then smacks Scott across the face.