Kylie Jenner models her 'boyfriend' Tyga's Crisp-brand boxer briefs

Kylie Jenner Snapchatted two selfies on Thursday while wearing her 'boyfriend' Tyga's Crisp-brand boxer briefs.

The 17-year-old reality starlet appeared to be wearing a push-up bra and Spanx-style, butt-boosting shapewear beneath her 'undergarments.'

The 25-year-old Grammy nominee - born Michael Nguyen-Stevenson - designed Kylie's $12 white boxers from his 'core collection.'

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Modeling undies: Kylie shared two selfies on snapchat while wearing her 'boyfriend' Tyga's Crisp-brand boxer briefs

Doing what she does best: Kylie Jenner Snapchatted two selfies on Thursday while wearing her 'boyfriend' Tyga's Crisp-brand boxer briefs

The Keeping Up with the Kardashians star - who changed her Instagram bio to 'King Kylie' - had previously modeled a rose-patterned pair back in January.

Tyga has clearly taken advantage of the underage millennial's marketable appeal since she boasts a combined 43M followers on social media.

The rumoured couple - who share a Calabasas neighbourhood - have been inseparable as far back as last Halloween. 

'Not doing s***!' The 17-year-old reality starlet appeared to be wearing a push-up bra and Spanx-style, butt-boosting shapewear beneath her 'undergarments'

'Not doing s***!' The 17-year-old reality starlet appeared to be wearing a push-up bra and Spanx-style, butt-boosting shapewear beneath her 'undergarments'

'Keep your __ fresh!' The 25-year-old Grammy nominee - born Michael Nguyen-Stevenson - designed Kylie's $12 white boxers from his 'core collection'

'Keep your __ fresh!' The 25-year-old Grammy nominee - born Michael Nguyen-Stevenson - designed Kylie's $12 white boxers from his 'core collection'

Not the first time: The Keeping Up with the Kardashians star - who changed her Instagram bio to 'King Kylie' - had previously modeled a rose-patterned pair back in January

Not the first time: The Keeping Up with the Kardashians star - who changed her Instagram bio to 'King Kylie' - had previously modeled a rose-patterned pair back in January

Chill out like Kylie in Tyga's Crisp brand briefs

Who says you have to be a man to wear briefs? Not for Kylie you don't. Kylie Jenner Instagrammed this photo wearing her 'boyfriend' Tyga's Crisp brand briefs with black and white floral design.

We love how Kylie candidly threw these on while relaxing at home.

Complete with an elastic waistband, they're even perfect to work out in. Just throw on a sports bra and tank top and you're ready to hit the gym!

Have you ever ran out of Pj's and stolen some of your boyfriend's or husband's boxers to sleep in? We know we have.

Now you don't have to steal his, you can get your own. At 95% cotton, we couldn't imagine a comfortable Pj or summertime lounge short.

If you want to be as sexy and comfy as Kylie, click to the right to get her briefs. Or check out our edit below for a carousel of other hot picks that will have you chillin' out.

* PRICES MAY NOT BE AS ADVERTISED

The heavily-tattooed rapper is reportedly producing Jenner's 'secret' debut album, and she's allegedly taking vocal lesssons.

'He's helping her write,' a source told Us Weekly. 'It's very Tinashe-type music.'

Complicating matters is the half-Vietnamese hip-hop star's two-year-old son King with ex-fiancée Blac Chyna (Kim Kardashian's gal pal).  

Close: Kylie supported Tyga at the LA premiere of his movie Dope on Monday

More than just arm candy: Tyga has clearly taken advantage of the underage millennial's marketable appeal since she boasts a combined 43M followers on social media (pictured Monday)

Cute crimson culotte jumpsuit: The rumoured couple - who share a Calabasas neighbourhood - have been inseparable as far back as last Halloween (pictured Monday)

Cute crimson culotte jumpsuit: The rumoured couple - who share a Calabasas neighbourhood - have been inseparable as far back as last Halloween (pictured Monday)

'He's helping her write. It's very Tinashe-type music': The heavily-tattooed rapper is reportedly producing Jenner's 'secret' debut album, and she's taking vocal lesssons (pictured Monday)

'He's helping her write. It's very Tinashe-type music': The heavily-tattooed rapper is reportedly producing Jenner's 'secret' debut album, and she's taking vocal lesssons (pictured Monday)

Single father at 25: Complicating matters is the half-Vietnamese hip-hop star's two-year-old son King with ex-fiancée Blac Chyna (Kim Kardashian's gal pal)

Single father at 25: Complicating matters is the half-Vietnamese hip-hop star's two-year-old son King with ex-fiancée Blac Chyna (Kim Kardashian's gal pal)

Peace! Tyga will soon be on the road, performing June 22 at Petőfi Csarnok in Budapest, before heading off to gigs in Austria and Switzerland (pictured May 9)

Peace! Tyga will soon be on the road, performing June 22 at Petőfi Csarnok in Budapest, before heading off to gigs in Austria and Switzerland (pictured May 9)

Tyga will soon be on the road, performing June 22 at Petőfi Csarnok in Budapest, before heading off to gigs in Austria and Switzerland.

Speaking of clothing lines, Kylie and her sister Kendall have headed up campaigns for Topshop, PacSun, Steve Madden, and OPI nail polish.

It's hard to believe the Jenner girls were ordinary Sierra Canyon School cheerleaders until they started homeschooling in 2012. 

Fashionistas: Kylie and her sister Kendall have co-created clothing collections for Topshop, PacSun and Steve Madden

Representing: Speaking of clothing lines, Kylie and her sister Kendall have headed up campaigns for Topshop, PacSun, Steve Madden, and OPI nail polish 

Growing up on TV: It's hard to believe the Jenner girls were ordinary Sierra Canyon School cheerleaders until they started homeschooling in 2012

Growing up on TV: It's hard to believe the Jenner girls were ordinary Sierra Canyon School cheerleaders until they started homeschooling in 2012

In fact, the Bellami Hair spokesmodel has been supporting herself since the tender age of 14.

'My [momager Kris Jenner] cut me off financially three years ago,' the plump-lipped socialite told InStyle UK.

'So I pay for everything – my car, my gas and food as well as my clothes.'

Back in February, Kylie dropped $2.7M on a five-bedroom Calabasas mansion, which she's vowed to move into the 'minute she turns 18' on August 10.

'I pay for everything': In fact, the Bellami Hair spokesmodel has been supporting herself since the tender age of 14

'I pay for everything': In fact, the Bellami Hair spokesmodel has been supporting herself since the tender age of 14

'I hope I look this good at ur fine age!' The plump-lipped socialite told InStyle UK, 'My [momager Kris Jenner] cut me off financially three years ago'

'I hope I look this good at ur fine age!' The plump-lipped socialite told InStyle UK, 'My [momager Kris Jenner] cut me off financially three years ago'

Homeowner: Back in February, Kylie dropped $2.7M on a five-bedroom Calabasas mansion, which she's vowed to move into the 'minute she turns 18' on August 10

Homeowner: Back in February, Kylie dropped $2.7M on a five-bedroom Calabasas mansion, which she's vowed to move into the 'minute she turns 18' on August 10

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