Fun at the fair! Jamie Bell and girlfriend Kate Mara put on another loving display as they take his little boy to the Malibu Chili Cook-off

They came out as a couple at the end of August.

But things are moving fast for Fantastic Four co-stars Jamie Bell and Kate Mara.

On Monday the handsome Brit took his girlfriend and his little boy to the Kiwanis Chili Cook-Off And Fair in Malibu, California, after the pair scoped out an open house in Los Angeles on Friday.

Just like any other family: Jamie Bell carried his little boy and girlfriend Kate Mara snuggled up as they walked around the Kiwanis Chili Cook-Off And Fair in Malibu on Monday, the Labor Day holiday

Just like any other family: Jamie Bell carried his little boy and girlfriend Kate Mara snuggled up as they walked around the Kiwanis Chili Cook-Off And Fair in Malibu on Monday, the Labor Day holiday

Looking just like any other family, the 29-year-old strolled along holding his son while Kate couldn't keep her hands off her new beau, lovingly clasping his arm.

The 32-year-old actress smiled affectionately at the blonde youngster, who recently turned two.

Jamie shares his lad with estranged wife Evan Rachel Wood. The pair separated in May last year after 19-months of marriage.

Staying close: The 32-year-old couldn't keep her hands off her handsome 29-year-old beau

Staying close: The 32-year-old couldn't keep her hands off her handsome 29-year-old beau

A lot to see: The four-day Malibu event, that wrapped at 6pm on Labor Day, included live entertainment, fairground attractions, wine from local vineyards, food and, of course, the famous chili cook-off competition

A lot to see: The four-day Malibu event, that wrapped at 6pm on Labor Day, included live entertainment, fairground attractions, wine from local vineyards, food and, of course, the famous chili cook-off competition

The couple were casually dressed with the Billy Elliot star in a black T-shirt, black skinny jeans and black sneakers while his youngster wore a grey Hopscotch T-shirt, blue denim shorts and red Nike sneakers.

Kate opted for a loose white vest with an asymmetric hem, blue skinny jeans and white espadrilles.

The brunette looked cute with her copper brown pixie haircut as she held a soft toy. 

Time to go home: Kate carried the toddler's plush blue toy back to the car

Time to go home: Kate carried the toddler's plush blue toy back to the car

The four-day Malibu event, that wrapped at 6pm on Labor Day, included live entertainment, fairground attractions, wine from local vineyards, beer from micro breweries, food and, of course, the famous chili cook-off competition.

It raises money for children's charity Kiwanis International and also supports the Wounded Warrior Project.

On Friday Jamie and Kate pair checked out an open house as they strolled in a leafy Los Angeles suburb with the toddler in his pushchair and her dog trotting along beside them. 

Working couple: Kate and Jamie co-starred in Fantastic Four alongside Miles Teller and Michael B. Jordan

Working couple: Kate and Jamie co-starred in Fantastic Four alongside Miles Teller and Michael B. Jordan

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