The Keeping Up With The Kardashians star was pictured heading into the family's Dash store in Los Angeles alongside partner Scott Disick on Tuesday (12 May).
Scott also brought along the couple's son Mason, five.
The family are just back home after spending some time relaxing in the Mexican sunshine, where they celebrated US Mother's Day on Sunday.
As well as Mason, Kourtney and Scott have kids Penelope, two, and Reign, five months.
All you need to know about Kourtney Kardashian in just one minute: