52194571 Reality star Kourtney Kardashian and her son Mason go to an art class in Calabasas, California on October 4, 2016. Kourtney recently got back to Los Angeles from Paris after immediately leaving shortly after her sister Kim was robbed at her luxury apartment in Paris on Sunday night. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876

Keeping Up With the Kardashians star Kourtney Kardashian stepped out with son Mason, 6, on Tuesday (October 4).

Rocking her workout gear accessorized with a black nylon bomber and matching Hermes Birkin handbag, the single mom, 37, took her son to an art class in Calabasas, Calif.

The reality star – who is also mom to daughter Penelope, 4, and son Reign, 1 – is back home in Los Angeles after attending Paris Fashion Week, where her famous sister, Kim Kardashian, was robbed.

Kim was bound, gagged and robbed at gunpoint of nearly $11 million worth of jewelry in her Paris apartment.

Five masked men wearing police jackets forced concierge at the No Name Hotel to show them to Kim’s room, where she was alone.

Once in the room, Kim’s hands and feet were bound with tape before she was locked in the bathroom while they stole a jewelry box worth $6.7 million in jewelry and a ring worth $4 million.

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52194560 Reality star Kourtney Kardashian and her son Mason go to an art class in Calabasas, California on October 4, 2016. Kourtney recently got back to Los Angeles from Paris after immediately leaving shortly after her sister Kim was robbed at her luxury apartment in Paris on Sunday night. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876
52194562 Reality star Kourtney Kardashian and her son Mason go to an art class in Calabasas, California on October 4, 2016. Kourtney recently got back to Los Angeles from Paris after immediately leaving shortly after her sister Kim was robbed at her luxury apartment in Paris on Sunday night. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876
52194565 Reality star Kourtney Kardashian and her son Mason go to an art class in Calabasas, California on October 4, 2016. Kourtney recently got back to Los Angeles from Paris after immediately leaving shortly after her sister Kim was robbed at her luxury apartment in Paris on Sunday night. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876
52194571 Reality star Kourtney Kardashian and her son Mason go to an art class in Calabasas, California on October 4, 2016. Kourtney recently got back to Los Angeles from Paris after immediately leaving shortly after her sister Kim was robbed at her luxury apartment in Paris on Sunday night. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876
52194572 Reality star Kourtney Kardashian and her son Mason go to an art class in Calabasas, California on October 4, 2016. Kourtney recently got back to Los Angeles from Paris after immediately leaving shortly after her sister Kim was robbed at her luxury apartment in Paris on Sunday night. FameFlynet, Inc - Beverly Hills, CA, USA - +1 (310) 505-9876

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