There’s nothing like spending some time with your cool older sister who pays for everything. Our photogs caught up with Rachel Bilson a couple of days ago, taking her little sister out for a nice Pinkberry treat in Studio City. What a sis Rachel is, eh? The cutie-pie Ms. Bilson can now boast about having her own clothing line. Well, it’s a line within a line, but who cares, right? Rachel just scored a new junior sportswear line with DKNY Jeans called ‘Edie Rose’. The collection is hitting stores like Macy’s, Dillard’s and Nordstrom in September. Good times! Can’t wait to see the line! In the meantime, check out more photos of Rachel having some fun with her little sis after the jump.