Katherine Schwarzenegger shows off her baby bump while dressed in jump suit

Katherine Schwarzenegger is expecting her first child with husband Chris Pratt, 40, sometime this summer.

And the 30-year-old The Gift of Forgiveness author was spotted on Monday afternoon showing off her burgeoning baby bump as she and Pratt tidied up their black SUV in Los Angeles. 

Schwarzenegger kept it comfy in a burgundy jumpsuit that she layered over a basic white tee.

Pratt flaunted his bulging biceps in a black Fitness500 t-shirt that coordinated with his basketball shorts by Clinch Gear Performance Apparel.