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The stork arrived!

Kristin Cavallari and husband Jay Cutler welcomed their second son Jaxon Wyatt on Wednesday, the reality star announced via Instagram.

The little bundle weighed in at 7lbs 11oz and joins big brother Camden, 19 months.

The couple, who wed in June 2013, revealed they were expecting again in October 2013 and revealed the baby's gender this past February.

What a difference a few years made for K-Cav!