Kim Kardashian sizzles in SKIMS SWIM bikini flashback photos... after returning to LA from Italy for Kourtney's wedding

Kim Kardashian was dressed in black outfits as she celebrated sister Kourtney Kardashian's wedding to Travis Barker in Portofino, Italy over the weekend.

So it was quite the contrast to see flashback bikini pinup images of her on her Instagram page Tuesday.

These photos of the reality TV maven in a blue bikini were taken several months ago when she first plugged her new swimwear line called SKIMS SWIM.

In her best suit: Kim Kardashian shared bikini images to Instagram on Tuesday that were taken months ago for her SKIMS SWIM launch

In her best suit: Kim Kardashian shared bikini images to Instagram on Tuesday that were taken months ago for her SKIMS SWIM launch

Pinup pose: Kim wore the string bikini beautifully as she flashed her sculpted arms and lean legs, as well as tiny waistline. The mother of four was sitting on a blue surf board that was laid down on a white sand beach

Pinup pose: Kim wore the string bikini beautifully as she flashed her sculpted arms and lean legs, as well as tiny waistline. The mother of four was sitting on a blue surf board that was laid down on a white sand beach

Kim wore the string bikini beautifully as she flashed her sculpted arms and lean legs, as well as tiny waistline.

The mother of four was sitting on a blue surf board that was laid down on a white sand beach.

The ex of Kanye West added mirrored wraparound sunglasses while her long black hair was down and flowing in the wind. 

The shoot first appeared in March when she was shot at night. 

After the sun went down: The shoot first appeared in March when she was shot at night

After the sun went down: The shoot first appeared in March when she was shot at night

Getting wet: For this image she sat on the shore as the ocean water rolled up on her

Getting wet: For this image she sat on the shore as the ocean water rolled up on her 

Make waves like Kim in SKIMS

Once again, Kim Kardashian has proved she is her own best model. The reality star looked flawless in a bikini set from her new swimwear collection.

Simple yet chic, the top has a classic triangle shape, while the briefs are completed with tie fastenings.

Kim’s bikini is available to buy in a total of seven colorways, so click the image to make it yours.

Alternatively, emulate her look using our shopping edit in the carousel. Weekday and Asceno have our favorite options.

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'We just announced our Skims Swim launch, which I am so excited about!' began the sister of Khloe and Kourtney.

'I’ve wanted swim for a really long time, so I cannot wait for this – I tested all the fabrics myself.'

Kim then said she was happy to have the suits be versatile. 

'The swimsuits are available in seven solid colours and can seamlessly go from day to night, poolside to party, the beach, and more.

On Monday North West - the daughter of Kim and Kanye West shared a revealing TikTok clip from Kourtney and Travis' splashy Portofino wedding reception held at the medieval Castello Brown fortress.

There were many highlights from the long video with the best being mom Kim dancing to the music with her sister Khloe as they both sang.

North at work: North West is proving to be quite the savvy social media presence. On Monday the daughter of Kim and Kanye West shared a revealing TikTok clip from Kourtney Kardashian and Travis Barker's splash Portofino, Italy

North at work: North West is proving to be quite the savvy social media presence. On Monday the daughter of Kim and Kanye West shared a revealing TikTok clip from Kourtney Kardashian and Travis Barker's splash Portofino, Italy

 

Smiling cutie: North looked adorable with her braces showing and her black outfit with a silver cross and jeweled necklace

Smiling cutie: North looked adorable with her braces showing and her black outfit with a silver cross and jeweled necklace

Make waves like Kim in SKIMS

Once again, Kim Kardashian has proved she is her own best model. The reality star looked flawless in a bikini set from her new swimwear collection.

Simple yet chic, the top has a classic triangle shape, while the briefs are completed with tie fastenings.

Kim’s bikini is available to buy in a total of seven colorways, so click the image to make it yours.

Alternatively, emulate her look using our shopping edit in the carousel. Weekday and Asceno have our favorite options.

DailyMail.com may earn commission on sales from these product links

Kim seemed to be having the time of her life as she worked up a sweat while grooving to the beat. 

The song played over the clip was We Are Family by Sister Sledge, which was a big hit in 1979. 

North has not slowed her presence on TikTok even though her father Kanye has made it very clear he feels she is too young to be on the video hosting service.

The clip is full of fun details. 

The video was taken by the child, eight, as she walks around the wedding reception which took place on Saturday evening.

Kim was also seen walking in a black D&G gown as she held onto North's hand. 

The Hulu star returned to Los Angeles from Italy on Monday with sister Khloe as she was seen getting off a orivate jet.

Mommy and daughter: Kim was also seen walking in a black D&G gown as she held onto North's hand on May 21

Mommy and daughter: Kim was also seen walking in a black D&G gown as she held onto North's hand on May 21

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Kim Kardashian shares fresh bikini photos taken months ago when she launched SKIMS SWIM

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