Sarah Jessica Parker shares a special moment with her daughter Marion on family day at the US Open

Sarah Jessica Parker earns a pretty good living entertaining others.
This time it was her cherubic child Marion who was causing the actress to break out into peals of giggles at the US Open final in New York on Sunday.   
Sarah, 48, was seen cradling her fair-haired, four-year-old daughter in the stands and giving her the biggest, most adoring of smiles.

Funny girl: Sarah Jessica Parker's daughter Marion kept her laughing and smiling during the US Open final in New York on Sunday

Marion was quite the lively one with her messy long braid trailing down the back of her
blue print frock with the red collar. 
The little girl had her mother's rapt attention and even at that exciting match between Serena Williams and Victoria Azarenka of Belarus - Serena won by the way.
Joining the fun family outing was Tabitha, the other adorable twin, Sarah's husband Matthew Broderick, 51, and the couple's son James, 11.

Follow me kids: Sarah led the way while looking stylish in pale pink leggings, moss-green T-shirt and matching ankle boots

All dressed up: Tabitha, four, wore a lavender toned dress with burgundy ribbons in her hair while her twin sister opted for red ribbons and a blue print frock as the family left their West Village townhouse

Ready to go: Everyone was excited to be going on this outing, even Sarah's 11-year-old son James

The gang was spied earlier leaving their trendy Manhattan West Village brownstone apartment with Sarah leading the way.
The stylish mother-of-three was dressed in a pair of pale pink and lavender print leggings, a loosely fitted moss-green T-shirt and high-heeled ankle boots of the same hue.
The Sex And The City star also shouldered a large artsy patterned monochrome tote that held all those handy items needed on outings such as these.

Here comes daddy: Matthew Broderick was casual yet stylish too in grey cardigan and jeans as he joined Sarah and the children

Let me entertain you: Marion was a fun distraction from the exciting game that saw Serena Williams beat Victoria Azarenka of Belarus

Sarah wore her long, blonde-tipped brown hair long and casually loose and there were dark sunglasses covering her eyes.
Tabitha mimicked her sister's look by wearing a pale print frock with white collar and Mary Jane shoes like Marion's.
Both girls wore their hair in twin braids accented with bright ribbons - red for Marion, burgundy for Tabitha.
The guys preferred the dressed down look with Matthew wearing jeans, a light button-up shirt and grey caridgan and James clad in jeans, purple long-sleeved shirt and carrying a blue jacket.