Ashlee Simpson - Jessica and Ashlee Simpson go toy shopping

Jessica and Ashlee Simpson go toy shopping

Jessica and Ashlee Simpson took their children toy shopping.

The sisters indulged in some retail therapy on Saturday (16.03.13) at Toys R Us in Burbank, Los Angeles, with Jessica's 10-month-old daughter Maxwell and Ashlee's excitable 4-year-old son Bronx in tow.

The beautiful siblings geared up for the big event with a stamina-boosting lunch at Don Cuco, before raiding the aisles for some new playthings and emerging with a trolley full of purchases.

It seems Jessica - who is expecting a baby boy with her fiancé Eric Johnson - can't get enough of baby shopping after she hit Bambini baby boutique in Beverly Hills the day before.

According to Us Weekly, the mother-to-be registered at the store and then checked out designers suitable for a baby boy, including Splendid, Jean Bourget and Little Marc Jacobs.

A fellow customer said: ''She seemed to know exactly what she wanted.''

Jessica left the high-end shop - which was also visited by Kim Kardashian last week - laden with goods.

The singer accidentally revealed the sex of her baby on 'Jimmy Kimmel Live' earlier this month, despite wanting to keep it a secret from the public.

While chatting about her pregnancy, she let slip: ''It's a total different pregnancy. I just feel awful. I've been vomiting. I had no idea that a wiener can make me nauseous.

''Oh shucks! Well I guess told the world that I was having a boy. I just outed that I am having a boy. I can't believe I did that. It was not planned!''