Khloe Kardashian hit the nail on the head when she said, "We obviously move really fast in my family." The reality star, who had a whirlwind wedding herself, threw together a last-minute engagement party for her sister, Kim, and fiance Kris Humphries last week.

So why all the rush this time around to celebrate the newly-engaged couple?

"We're so crazy busy, and Kris was going back to Minnesota to be with his family," Kardashian told Us Weekly about her family's hectic schedule. "We were trying to find a day where the two fiancees could be there with all of us. On Monday, we realized that Thursday was open, so I was like, 'Am I really going to throw a party on Thursday?'"

But Kardashian didn't have to plan it all by herself, calling on event planner Sharon Sachs to work her magic.