Sofia Richie, 22, shows off her toned figure in an orange and white bikini in St. Barts

Sofia Richie has been living it up in St. Barts. 

The 22-year-old reality television star — and ex of Scott Disick, 37 — showed off her sizzling bikini body with a slideshow posted to her Instagram account on Monday.

She sported a revealing orange and white striped two-piece bathing suit in some of the snaps from her beach-filled vacation with new beau, Elliot Grainge.

Bikini body: Sofia Richie has been living it up in St. Barts. The 22-year-old reality television star – and ex of Scott Disick, 37 – showed off her sizzling bikini body with a slideshow posted to her Instagram account on Monday

Her sun-kissed skin was on full display in the string number, while her flowing blonde beach waves hung over her prominent cleavage.

She kept her face shielded from the bright sun with the help of a green terry Lack of Color bucket hat and large gold shades.

The daughter of Eighties crooner Lionel Richie accessorized the water-ready look with two gold necklaces.

Her toned tummy and sculpted legs were also exhibited in the hip-hugging bottoms as she posed in front of the stunning blue water.

Toned: She sported a revealing orange and white striped two-piece in some of the snaps from her beach-filled vacation with new beau Elliot Grainge. Her toned tummy and sculpted legs were on display in the hip-hugging bottoms as she posed in front of the stunning blue water

Toned: She sported a revealing orange and white striped two-piece in some of the snaps from her beach-filled vacation with new beau Elliot Grainge. Her toned tummy and sculpted legs were on display in the hip-hugging bottoms as she posed in front of the stunning blue water

Love ride: She also posted a snap of her with her new boyfriend in the same look as they hit the road in a teal Mini Cooper together. 'Dreamy,' she captioned the sweet photo along with a heat eyes emoji

Love ride: She also posted a snap of her with her new boyfriend in the same look as they hit the road in a teal Mini Cooper together. ‘Dreamy,’ she captioned the sweet photo along with a heat eyes emoji

She also posted a snap of her with her new boyfriend in the same look as they hit the road in a teal Mini Cooper together.

‘Dreamy,’ she captioned the sweet photo along with a heat eyes emoji. 

The model recently struck up a romance with the music executive, 27, who is the son of Universal Music Group Chairman and CEO Lucian Grainge.

The two haven’t been able to keep their hands off each other as they’ve been spotted hitting the beach on their trip.

Romance: The model recently struck up a romance with the music executive, 27, who is the son of Universal Music Group Chairman and CEO Lucian Grainge. The two haven't been able to keep their hands off each other as they've been spotted hitting the beach on their trip

Romance: The model recently struck up a romance with the music executive, 27, who is the son of Universal Music Group Chairman and CEO Lucian Grainge. The two haven’t been able to keep their hands off each other as they’ve been spotted hitting the beach on their trip

Escape: They escaped to the celeb-favorite Caribbean island for the weekend where they rented a luxury villa by the beach

Escape: They escaped to the celeb-favorite Caribbean island for the weekend where they rented a luxury villa by the beach

They escaped to the celeb-favorite Caribbean island for the weekend where they rented a luxury villa by the beach.

And they spent the day hopping between the tropical waters and the villa’s pool before doing a little shopping and grabbing a bite to eat.

The new pair were joined by friends for the trip, as Sofia modeled some of her other colorful bikinis while posting photos with their fellow vacationers.

‘Wife life,’ she wrote alongside a couple of snaps of herself enjoying a meal of pizza and Aperol Spritzes with her girlfriends.  

Friend time: The new pair were joined by friends for the trip, as Sofia modeled some of her other colorful bikinis while posting photos with their fellow vacationers

Wife life! 'Wife life,' she wrote alongside a couple of snaps of herself enjoying a decadent meal with her girlfriends

Friend time: The new pair were joined by friends for the trip, as Sofia modeled some of her other colorful bikinis while posting photos with their fellow vacationers. ‘Wife life,’ she wrote alongside a couple of snaps of herself enjoying a decadent meal with her girlfriends

Living the dream: The group spent the day hopping between the tropical waters and the villa's pool before doing a little shopping and grabbing a bite to eat

Living the dream: The group spent the day hopping between the tropical waters and the villa’s pool before doing a little shopping and grabbing a bite to eat

Sofia first debuted Elliott in late March on Instagram before they escaped to the Rosewood Miramar Beach resort in Santa Barbara.

And she continued to show that she was serious about him when she shared a loved up kissing photo of them on April 7.

A source told Entertainment Tonight: ‘They have been friends for years and Elliot is also close with Sofia’s brother, Miles. It’s very nice for Sofia to date someone who her family approves of and likes.’

‘Sofia and Elliot are happy together and having fun,’ they added.

Debut: Sofia first debuted Elliott in late March on Instagram before they escaped to the Rosewood Miramar Beach resort in Santa Barbara. And she continued to show that she was serious about him when she shared a loved up kissing photo of them on April 7

Debut: Sofia first debuted Elliott in late March on Instagram before they escaped to the Rosewood Miramar Beach resort in Santa Barbara. And she continued to show that she was serious about him when she shared a loved up kissing photo of them on April 7

Her new man is more age appropriate than her ex-boyfriend Scott, who she called it quits from over the summer. 

Sofia and Elliot started out as friends before things turned romantic. ‘Their relationship took off and they have been getting closer and closer and spend practically every day together,’ a source told Us Weekly.

Her dad Lionel had reportedly been ‘wary’ of her relationship with Disick but is said to ‘approve,’ of the UK native.

And before dating Elliot she had been linked to a string of eligible bachelors including Cha Cha Matcha founder Matthew Morton and Israeli shipping heir Gil Ofer.  

Exes: Her new man is more age appropriate than her ex-boyfriend Scott (seen here in 2017), who she called it quits from over the summer. Her dad Lionel had reportedly been 'wary' of her relationship with Disick but is said to 'approve,' of the UK native

Exes: Her new man is more age appropriate than her ex-boyfriend Scott (seen here in 2017), who she called it quits from over the summer. Her dad Lionel had reportedly been ‘wary’ of her relationship with Disick but is said to ‘approve,’ of the UK native