Credit: Albert Michael/

Kourtney Kardashian doesn't have any regrets about showing son Mason's birth on Sunday's Keeping Up With the Kardashians finale, says her sister Khloe.

"She's 100 percent happy she did it," Khloe, 25, told Tuesday at the NYC launch for Three-O Vodka's Rangtang.

Khloe told Us she "was traumatized" being in the delivery room, but Kourtney, 30, was "fine."

More than 4.8 million viewers tuned in to see Mason's birth -- making it E!'s most-watched telecast ever.

"She doesn't even look like she's giving birth!" Khloe told Us of the footage. "It looks fake!"

And how are things between Khloe and Scott Disick (Mason's father)? The two famously feuded on-air because Khloe always claimed Scott was using her sister.

"Everyday is different," Khloe told Us.

Khloe told Us she wouldn't even mind if her sister got engaged. "I hope so!" she said.