Sofia Richie, 19, cuts a chic figure in all black for the hair salon... while boyfriend Scott Disick, 34, buys son Mason, 8, a motorcycle for Christmas

They've been inseparable since going public with their romance in September.

But on Wednesday, Sofia Richie and Scott Disick were on opposite sides of Los Angeles.

Sofia, 19, headed to her hair salon in Westwood while Scott, 34, stepped out with his son Mason, 8, in Calabasas to buy a motorcycle.

Chic: Sofia Richie and Scott Disick were on opposite sides of Los Angeles on Wednesday

Chic: Sofia Richie and Scott Disick were on opposite sides of Los Angeles on Wednesday

Sofia looked chic in her all-black ensemble while on her way inside the West side salon.

The teenager flaunted her svelte figure in her spandex leggings, adding a coordinating loose turtleneck top.

The model, who is five-feet-six-inches, hit the pavement in trendy ankle boots while carrying black handbag over one shoulder.

Sofia sported small gold framed sunglasses with her short blonde locks pulled back into a low bun. 

Father son outing: Sofia, 19, headed to her hair salon in Westwood while Scott, 34, stepped out with his son Mason in Calabasas to go buy a motorcycle

Father son outing: Sofia, 19, headed to her hair salon in Westwood while Scott, 34, stepped out with his son Mason in Calabasas to go buy a motorcycle

The daughter of Lionel Richie kept her makeup to a minimum, opting for just a touch of lipstick and defined brows. 

Meanwhile, her boyfriend Scott Disick took his son Mason on an extravagant shopping spree in Calabasas.

The 34-year-old reality star was seen picking up his son and taking him to go buy a motorcycle.

Scott, who has three kids with ex Kourtney Kardashian, also bought a motocross helmet as well as shoulder pads and boots. 

Teen queen: Sofia looked chic in her all-black ensemble while on her way inside the  salon

Teen queen: Sofia looked chic in her all-black ensemble while on her way inside the salon

Living the dream: The teenager flaunted her svelte figure in her spandex leggings, adding a coordinating loose turtleneck top

Living the dream: The teenager flaunted her svelte figure in her spandex leggings, adding a coordinating loose turtleneck top

Dad of the year: The 34-year-old father of three was seen picking up his son and taking him to go buy a motorcycle

Dad of the year: The 34-year-old father of three was seen picking up his son and taking him to go buy a motorcycle

Sofia and Scott made their relationship public in September while enjoying a romantic holiday in Miami, Florida.

They were linked as far back as May.  

Since going public, the lovebirds have enjoyed trips to Venice and Milan, Los Cabos, Mexico and Puerto Vallarta.

According to People, Sofia and Scott are 'very serious.' 

Inseparable: The model and Scott made their relationship public in September while enjoying a romantic holiday in Miami, Florida; seen on December 13 in LA

Inseparable: The model and Scott made their relationship public in September while enjoying a romantic holiday in Miami, Florida; seen on December 13 in LA

Be a babe in Balenciaga denim like Sofia

When something works, buy it in multiple colors. Sofia Richie lives that style secret because we've just spotted her in these blue Balenciaga jeans that she's been seen in before but in black.

At first blush, they're like any other ordinary blue jeans but it's the subtle details that make these denims a cut above the rest.

We love the flattering button-fly high waist on these pants that cut right above the ankle-- perfect for teaming with a sleek pair of ankle boots a la Sofia, but they would also look great with casual sneakers for day time.

These retro-inspired jeans don't have any stretch, which makes for a tight fit at first but one that eventually takes on your shape in all the right places.

It's true that a great pair of jeans can last you a lifetime and if you're looking to make an investment then click right to shop Sofia's pair from NET-A-PORTER.

Or head to our edit below for a roundup of our favorite classic baby blues-- starting at just $51!

* PRICES MAY NOT BE AS ADVERTISED
So happy: Since going public, the lovebirds have enjoyed trips to Venice and Milan, Los Cabos, Mexico and Puerto Vallarta; seen on December 8 in Miami at an Art Basel event

So happy: Since going public, the lovebirds have enjoyed trips to Venice and Milan, Los Cabos, Mexico and Puerto Vallarta; seen on December 8 in Miami at an Art Basel event

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Sofia Richie wears all black for the hair salon

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