Enjoying the beautiful Sunday sunshine, Rachel Bilson was spotted hanging with her little sister Hattie and pet pooch Thurmen Murmen yesterday (August 10).

The two Bilson babes were reportedly on their way to visit their grandmother in Studio City, California when the paparazzi caught up with them.

And the “Last Kiss” cutie looked summertime chic in a black floral pattern sundress with brown leather sandals and a pair of funky green shades.

Speaking of fashion, Rachel has a new line of clothing coming out with DKNY Jeans called Edie Rose, named after her grandmother. She told press, “This line is my main focus right now. I can’t draw at all, so I won’t be doing any sketches, but I am learning to sew. I think it’s important to know more about the whole process of making clothes.”

Gossip Girls

Enjoy the pictures of Rachel Bilson out with Hattie and Thurmen Murmen (August 10).