Kourtney Kardashian & Scott Disick Stroll with Baby Mason

Kourtney Kardashian, 31, and Scott Disick may have had their relationship ups and downs, but the proud parents looked quite happy as they strolled with their son Mason on Saturday afternoon.

Scott toted Baby Mason for a while, as the couple took a walk in Calabasas, CA.

KIM KARDASHIAN & LA LA VASQUEZ DINE AT NOBU

Mason Dash Disick was born on Dec. 14, 2009.