Paparazzi captured both women, who were dressed in ripped blue jeans, white T-shirts and sunglasses, as they met up for a bite to eat at Tra Di Noi in Malibu for Lindsay's birthday.
Later, according to the Daily Mail, Lindsay went to dinner at Cecconi's, an Italian restaurant in West Hollywood, where she received balloons and presents for her special day.
"Having the best bday ever with family, friends," Lindsay wrote on her Twitter page Thursday evening.
Lindsay did hint, however, that there was one thing that would have made her day perfect – her family's presence.
"But I miss my sister and baby brother Cody and my mommy and nana," she tweeted.
Related Content from AccessHollywood.com:
VIEW THE PHOTOS: Hollywood Redheads
PLAY IT NOW: Access Extended: Behind The Scenes Of Lindsay Lohan's 'Labor Pains'
PLAY IT NOW: Dina Lohan Talks 'Living Lohan' & Lindsay's Rumored Romance (July 17, 2008)