The reality star says the clan is "thrilled, excited and blessed" at the arrival of sister Kourtney's son

By People Staff
Updated December 16, 2009 01:00 PM

The birth of Kourtney Kardashian’s son Mason Dash Disick was “the perfect gift this Christmas,” sister Kim says.

“The whole family is so thrilled, excited and blessed,” she writes on her blog. “Khloe, Kendall, Kylie and I are officially aunties, Rob is an uncle, Bruce is a grandpa … and, well … mom is a grandma, and as much as she might say she doesn’t like being called one, we know she secretly loves it!!” – Mike Fleeman