They were having a family workout!
Kourtney is still working off some of the baby weight.
We previously mentioned she wanted to lose the 20 pounds she's gained since she started dating Kanye West.
We're glad they're helping to motivate each other!
Living life in the spotlight can make you very aware of your body, so we're glad they have each other for support.
Way to keep it fit, ladies!
[Image via Kadena Press/WENN.]