Kourtney Kardashian and Scott Disick are expecting their third child, due this December.

The Keeping Up with the Kardashians stars, who already have two children (Mason, 4, and Penelope, 23 months), planned the pregnancy, an insider said. "Kourtney wants to have a handful of kids," the insider said, while a separate source confirmed that the eldest of the Kardashian sisters "is only a few months along."

The 35-year-old star was said to have a radiant pregnancy glow about her when she and Scott stayed at the Trump SoHo hotel in New York after returning from her

sister Kim Kardashian's wedding to Kanye West in Italy last month. "Kourtney looked really pretty "she had a nice flush on her cheeks," the insider said of the reality star, who hasn't decided upon a name for the baby yet with the "Lord" of the Kardashian clan.