Kourtney Kardashian flaunts her bare derrière in tiny thong bikini on holiday with boyfriend Younes Bendjima

Kourtney Kardashian flaunts her bare derrière in tiny thong bikini on holiday with boyfriend Younes Bendjima

The reality star has been enjoying some R&R in Mexico

has sent temperatures soaring with her latest bum-baring Instagram snapshot.

Lying on a sun lounger in front of her hotel balcony, the bikini-clad reality star’s peachy behind is on full display in a barely visible gold thong.

“Guac is extra,” the 38-year-old wrote.

Less than an hour after she uploaded the sexy snap, it had unsurprisingly clocked up over a massive one million likes.

The reality star took the snap in Mexico where she was enjoying a sunshine getaway with her 24-year-old boyfriend Younes Bendjima.

The jet-setting pair were staying at a luxury eco-friendly resort in Punta Mita.

“They had a relaxing weekend,” a source told People magazine. “The resort is in the jungle and they had a guided jungle tour.

“They also hung out on the beach, enjoyed room service and the spa.”

As well as her bottom-baring snap, Kourtney also shared a picture of her posing by the couple’s private pool in a frilly white bikini.

“It’s the simple things,” Kourt captioned it.

Sister Khloe soon fired back, telling her sister to cheer up: “Smile woman! You’re on vacation.”

The mum-of-three joked back: “You’re on candid camera.”