Kourtney Kardashian rocks casual T-shirt and shorts as she and son Reign run errands together in LA

Kourtney Kardashian and her youngest son Reign were out and about in Los Angeles on Tuesday as he helped her run errands around the city.

The 41-year-old Keeping Up With The Kardashians star was dressed casually for her day out, while her five-year-old son matched her low-key attire.

The Poosh founder covered up her trim figure in a baggy black Billy Joe's Ribworks T-shirt, which she wore partially tucked in.