Kylie Jenner wears a hot pink sports bra as she poses for selfies in her luxurious home... and even gives a glimpse of her shoe closet

She spent a quiet night in watching Caitlyn Jenner's reality show.

But Kylie Jenner was dressed for the gym as she shared some sporty selfies with fans on Instagram on Sunday night.

The 18-year-old showed off her hourglass figure and cleavage in a pink sports bra and black capri yoga pants in a photograph she captioned simply 'chill night.'

The teenager was barefoot in the photograph, which she snapped while posing in front of a floor mirror in gorgeous luxury home.

Posing outside her impressive walk-in shoe closet, Kylie instead went barefoot as she playfully twirled her blonde hair. 

She also posted another selfie from what appeared to be her make-up room.

The Keeping Up With The Kardashians star wore matching pink nails and gold bangles as she posed with two chairs and a large round light.  

Of course, Kylie wasn't the only Jenner sharing social media photos on Sunday.

Her older sister Kendall Jenner also posted an image of herself taking in a beach sunset to her 36 million followers.

The model wrapped herself in a fringed blanket which she held up to her mouth in the summertime snap. 

Kendall wore a white tunic and flashed a smile as she enjoyed a beach break for the Labor Day weekend. 

Since Kylie was spending the night in, she took the opportunity to watch her parent Caitlyn Jenner's reality show I Am Cait.  

On Sunday, the 18-year-old posted a photo on her Instagram account showing her feet propped up in front of her as she watched the latest episode of the E!'s show.

She captioned the selfie with: 'watching I Am Cait in my lil master sitting room I've been working on. 

Kylie wore black and white print pointed toe pumps which she rests on a black coffee table.

An image of Caitlyn is on the screen of her built-in television in her wall-to-ceiling cabinets.

She has a bright red designer purse on one shelf and two lots of stacked red boxes as well as a wind-up alarm clock and a pair of antlers on other cabinet shelves.

A large full-length mirror is propped up against a wall. The snap gives another peek into the teen's world now she is living independently in her own luxury home in Calabasas.

She seems to be still in the midst of getting the house the way she wants it and has been working on furnishing the small sitting area adjacent to her master bedroom.

Earlier in the day, she and boyfriend Tyga were out and about running errands near their Calabasas residences.