Pregnant Khloe Kardashian Shows Off Impressive Workouts With Kourtney -- Watch

Khloe Kardashian took some time out on Wednesday to wish older sister Kourtney Kardashian a happy birthday.

Khloe Kardashian continues to work on her fitness!

Just days after the 33-year-old reality star called out fans criticizing her for working out while pregnant, Khloe showed off her impressive exercise routines with sister Kourtney Kardashian on social media.

In Snapchats posted on Thursday, Khloe and Kourtney can be seen hitting the gym, lifting weights and working on various leg, ab and arm exercises.

Khloe sports black leggings with a light gray sweatshirt, as Kourtney dons all black while doing a full-body workout.

Earlier this week, Khloe, who is pregnant with her first child, replied to fans who said she shouldn't be working out after she began to Snapchat her gym sessions.

"For the ones who think they are physicians all of a sudden ]]>🤦🏼