'KUWTK' Stars Kendall Jenner, Kylie Jenner Flaunt Sexy Abs In Steamy Instagram Selfies [PHOTOS]

The KUWTK stars, Kyle Jenner and Kendall Jenner, appear to be competing for attention from their followers. Trying to one-up each other, the Keeping Up With The Kardashians reality starlets showed off their sexy bodies in a bunch of self-portraits on Instagram.

As we previously mentioned, the young model named Kendall joined BFFs Selena Gomez and Gigi Hadid on a fun-filled trip to Abu Dhabi. The trio said farewell to the freezing temperatures and basked in the warmth of the United Arab Emirates. While donning traditional Middle Eastern outfits, the gang took in the gorgeous sights of the famous Sheikh Zayed Grand Mosque.

According to E! online, the 19 year old model took a snapshot of herself while wearing a incredibly skimpy bikini. The brunette beauty looked incredibly fit with her slim and toned abs. Feeling confident in her own skin, the young model had no problem flaunting cleavage in black lingerie while getting spanked by Santa Claus for Love Magazine's Advent Calendar.

A photo posted by Kendall Jenner (@kendalljenner) on Dec 12, 2014 at 6:59am PST

Jenner writes on her Instagram wall, "Dubyeeee 2014" The visit wasn't all fun and games as the Come & Get It singer may have behaved a bit too "provocatively" within the sacred walls. Muslim leaders were ticked off by a certain "disrespectful" photo, which Gomez later took down from her Instagram, where she flashed her ankle around. US Weekly then noticed Kylie Jenner followed her sibling's lead, went onto her social media site and snapped a body picture for her Instagram followers Celebrating the new year, the 17-year-old posed for the camera and displayed her own flat abs.

A photo posted by Kylizzle (@kyliejenner) on Jan 1, 2015 at 12:57pm PST

The reality star writes beside her Instagram photo, "1/1/15"

We mentioned before, the Seventeen Magazine cover girl was upset that she couldn't ring in the New Year with her rumored boyfriend, Tyga because of her young age. Rumors are swirling that the two might confirm their relationship upon her eighteenth birthday.

To prove who's better-looking, Kylie and Kendall Jenner showed off their sexy bodies on Instagram. Readers, which picture do you like most?