It was a family affair at the Pacific Design Center in West Hollywood for the 59-year-old actress, who was all smiles as she wrapped her arms around boys Roan Joseph, 16 and Laird Vonne, 11 and posed for photos.
Wearing a one-shoulder emerald green mini dress, Stone looked happy as could be — her short blonde bob perfectly framing her grin. She helped her dress pop with all-gold accessories: gold glasses, bracelets, sandals, and an across-the-chest handbag.
Roan looked sophisticated and cool in a light blue suit with a black and white high tops and a striped shirt — his black shades taking the place of a necktie.
His younger brother Laird kept things slightly more casual — rocking a printed T-shirt under a black blazer. He added grey slacks, black penny loafers, and a pair of colorful socks to polish off his outfit.
“Happiest Birthday!” Stone wrote, adding a heart emoji to accompany the shot — which showed the the family of four sitting on a staircase together amid a bunch of balloons.
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In A Little Something for Your Birthday — from writer/director Susan Walter — Stone plays a woman who falls for Scandal star Tony Goldwyn. Only problem? Her super-controlling mother, played by Ellen Burstyn.
Stone was photographed on set in October, showing off her flawless beach body in a patterned string bikini top and lace-up red micro-shorts while filming an outdoor volleyball scene at Zuma Beach in Malibu, California.
Her and co-stars Susan Walters, Erica Ash and Olympian Ryan Lochte appeared to become fast friends too, often posing for group shots on social media.