Ab-tastic! Sofia Richie flashes her taut tum as she goes out to lunch with friends... amidst rumoured romance with Brooklyn Beckham

A very trendy Sofia Richie was seen lunching at her favorite spot, Mauro's restaurant, in West Hollywood on Thursday.

The 18-year-old daughter of Lionel Richie was seen with a group of friends. 

The aspiring blonde model was wearing a pair of black sweats and a crop top paired with an over-sized coat and camel boots.

Ladies who lunch: A very trendy Sofia Richie was seen lunching at her favorite spot, Mauro's restaurant, in West Hollywood on Thursday

The minuscule crop top showed off her taut abs and slender frame. 

The socialite-turned-model accessorized with a pair of designer sunglasses and a beanie hat.

Her short platinum locks were seen styled in a natural fashion underneath her hat.

Squad goals: The 18-year-old daughter of Lionel Richie was seen with a group of friends

Style queen: The aspiring blonde model was wearing a pair of black sweats and a crop top paired with an over-sized coat and camel boots

The young model also appeared to be wearing minimal make-up for her day out. 

Meanwhile, Sofia was spotted on a midnight stroll with Brooklyn Beckham over the weekend. 

The Vogue model and the son of legendary footballer David Beckham and fashion icon Victoria certainly seemed to be getting along famously as they hung out on Sunday night.

Natural beauty: The young model also appeared to be wearing minimal make-up for her day out

Catching up around midnight in the exclusive upscale community of Beverly Hills, the duo laughed as they chatted together in the street.

A source told MailOnline: 'They are not dating, just part of a group of his friends in LA.'

She was wearing a pair of jogging bottoms promoting Justin Bieber's Purpose Tour - as she was briefly linked to the pop star back in August. 

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