• Women are pressing their butts against swimming pool’s glass walls for photos
  • The trend has spread like bush fire across the world

Selfies have seemingly become as essential as oxygen, water or even food, thanks to smart phones. They are the reasons why some people are in relationships, get pregnant, take their children to school, buy vehicles and even go on holiday.

And the photos come with trends, the latest being taking bare-butt selfies against glass walls by the swimming pool, according to The Sun.

With many hotels and beach clubs building glass-walled swimming pools, the trend has spread like bush fire across the world. Well, it may not have reached here yet.

"Women in bikinis are now making full use of the glass walls, by pressing their bums up against the side for photo shoots. From Dubai and Mexico to Las Vegas, Instagrammers are leaving little to imagination as their share their new underwater "belfies"," said The Sun.