Khloe Kardashian is one happy aunt!

Arriving at LAX from New York City, the reality star was beaming as news hit that her older sister was pregnant on Sunday night's episode of Keeping Up with the Kardashians.

For her flight back to the City of Angels, the 30-year-old donned a trench, white jeans, a white top and a mustard yellow fedora by Maison Michel. The aunt of four paired some super cute Balmain khaki canvas booties with her ripped jeans. Not a bad way to keep covered from NYC's oh-so stormy weather!

The baby news was announced in a teaser for upcoming episodes of the E! reality show. In the clip, 34-year-old Kim told a stunned Khloe: "I just got the blood test back, and I am pregnant!"

We don't know how far along Kim is with Baby West No. 2 (their daughter North turns two on June 15) -- but we can tell the good news is welcomed in the family's sea of selfie and sex change shockers.