Kourtney Kardashian & Mason Dash To Work

New mom Kourtney Kardashian was spotted carrying her 4-month-old son Mason Dash Disick out of the Dash store in Calabasas, Calif. on Thursday (April 23). Mason was all bundled up with a cute personalized blanket covering him in the car seat.

So was Mason's middle name inspired by mama's clothing store? The 31-year-old reality TV starlet set the record straight:

Dash is not for my clothing store, as some people have suggested online,” Kourtney said. “That would be stupid. Dash is short for Kardashian, and it was my father’s nickname.”

Mason Dash's father is Kourtney's boyfriend, Scott Disick.