Meet Eloise Christina Schwarzenegger Pratt!  On June 18, Katherine Schwarzenegger shared on Instagram the first pics of her and husband Chris Pratt's second daughter.

The couple introduced last month that on May 21, Katherine gave birth to the child, who joins big sister Lyla Maria Schwarzenegger Pratt, 22 months

and big brother Jack Pratt, Chris' 9-year-old son with ex-wife Anna Faris. 

Katherine Schwarzenegger and Chris PrattShares

While keeping up with Katherine and Chris' coverage of now no longer publicly showing their daughters' faces online,

the proud mother shared a selfie showing herself keeping child Eloise and an image of the child sitting on her lap while wearing a white and grey striped bodysuit

The daughter of Arnold Schwarzenegger and ex Maria Shriver also posted photos of bottles of breast milk, a Moses basket sitting beside a vase of pink and white roses,

a gift of lactation cookies and a latte with smiley face art and a snap of Chris cooking in a kitchen. Katherine captioned her post, "May & June."