Buffy The Basketball Bouncer! Sarah Michelle Gellar wows in semi-sheer floral print dress as she shoots basketball with son at benefit bash

She's the proud mother of two children. 

And Sarah Michelle Gellar was game to indulge in her playful side when she attended the Mattel Party On The Pier in Santa Monica with her son Rocky, three, on Sunday. 

The 38-year-old, who hosted the seaside bash, was bohemian chic in a flowing black-and-white floral print dress that had sheer sleeves.  

Let the games begin! Sarah Michelle Gellar looked bohemian chic in a floral print black dress at Mattel Party On The Pier on Sunday in Santa Monica

Let the games begin! Sarah Michelle Gellar looked bohemian chic in a floral print black dress at Mattel Party On The Pier on Sunday in Santa Monica

Sarah's gold and highlighted hair was pulled back into a low ponytail for the event, no doubt a sensible hairdo for her active day out. 

Her famous face radiated with a smooth finish of foundation and pink lip gloss, she finished off the outfit with suede ankle boots. 

Once inside the bash, it seemed Sarah couldn't stop smiling.  

Picture perfect: The starlet flashed a brilliant beam when she arrived for another round of hosting duties

Picture perfect: The starlet flashed a brilliant beam when she arrived for another round of hosting duties

Giving it a go: The actress was ready to give the carnival game her all as she stood beside a smiling Mark-Paul Gosselaar

Giving it a go: The actress was ready to give the carnival game her all as she stood beside a smiling Mark-Paul Gosselaar

The former Buffy The Vampire Slayer star tried out the bean bag toss, and even practiced her aim as she threw a basketball for another game. 

The actress lifted the basketball high up into the air before giving her best shot. 

Sarah also lifted her son Rocky in her arms, who appeared to be ready to give the game a go as well with the basketball in his hands.

What a tosser! Gellar grinned as she tried her hand at a bean bag throw

What a tosser! Gellar grinned as she tried her hand at a bean bag throw

Good one! The wife of Freddie Prinze Jr. flung her bean bag towards the target

Good one! The wife of Freddie Prinze Jr. flung her bean bag towards the target

The actress was also joined by former Saved By The Bell actor Mark-Paul Gosselaar, who hovered close by Sarah's shoulder before she made her shot. 

During a breather away from the games, Sarah took to the stage to give what appeared to be a spirited talk to the audience.

Sarah continued to praise the event when she took to Instagram that day.

'I was so honored to host for my second year in a row': The actress praised the bash on Instagram that day

'I was so honored to host for my second year in a row': The actress praised the bash on Instagram that day

Giving it his best effort: Sarah's son Rocky, three, clutched the basketball as he prepared to give the game a shot 

Giving it his best effort: Sarah's son Rocky, three, clutched the basketball as he prepared to give the game a shot 

The hostess with the mostess! The blonde beauty appeared to be giving a spirited talk to the crowd

The hostess with the mostess! The blonde beauty appeared to be giving a spirited talk to the crowd

Her caption read: 'Thank you everyone for turning out today for @mattel #uclamattelchildrenshospital #PartyOnThePier Last year we raised over 850,000 dollars (the most ever) and my goal was to raise even more this year!! 

'I was so honored to host for my second year in a row. #DrDevaskar you are a true #hero and #inspiration We were even part of the auction @foodstirs #foodstirs #bestday #POP.'

The bash is now in its sixteenth year and aids programs designed for children who are being treated at Mattel Children's Hospital UCLA, according to the website

Pep talk: The actor appeared to be giving Gellar some words of encouragement as she stepped up to the plate

Pep talk: The actor appeared to be giving Gellar some words of encouragement as she stepped up to the plate

Not pictured with Sarah was her husband Freddie Prinze Jr.

The couple, who recently celebrated their 13th wedding anniversary, met while working on 1997's teen horror film, I Know What You Did Last Summer, and began dating in 2000.

Sarah and the She's All That actor tied the knot in Mexico in 2002 and have two kids together, Charlotte, six, and Rocky.

In 2002, the couple starred opposite one another as love interests Fred and Daphne in the live action production of Scooby Doo.

Sarah's most recent TV series was The Crazy Ones, a sitcom about an advertising agency, starring opposite the late Robin Williams. 

She next has a role in an episode of the comedy show Those Who Can't, which is now in post-production and scheduled for release in 2016. 

Proud mom! The 38-year-old smiled as her son walked in front of her, holding his backpack 

Proud mom! The 38-year-old smiled as her son walked in front of her, holding his backpack 

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