Jessica and Ashlee Simpson's Ivy Celebration

Stepping out for a celebratory lunch, the Simpson sisters were spotted out at The Ivy restaurant in Santa Monica, CA over the weekend (October 15).

With Jessica toting presents under her arm, the rumored to be pregnant star joined up with sister Ashlee, her son Bronx and their mother, Tina, with the group thought to be holding a belated bash for Ashlee - who turned 27-years-old on October 3rd.

The sighting comes as Ashlee’s boyfriend, Vincent Piazza, recently spoke about the fact that he is nervous about opening up about how “wonderful” Ashlee is because he doesn’t want it to “diminish” their relationship.

He told OK! Magazine, “Saying it publicly (my feelings) would only diminish it between the two of us. She’s a wonderful girl.”

Enjoy the pictures of Jessica and Ashlee Simpson arriving for lunch at The Ivy on the Shore in Santa Monica (October 15).