Boob jobs and butt lifts are old news, and ‘macho mouth’ transformations have replaced them.

Surgeons say there has been a rise in the number of men who want lip injections to give them a ‘proud’ lower lip and a natural smirk.

Dr Rian Maercks, a plastic surgeon in Miami, Florida, told Daily Mail Online that men are flocking to him to get macho mouth procedures that make their lips more plump without feminizing their faces.

And despite fielding hundreds of clients a year, he says he always sees the same four ‘celebrity wish pics’: Brad Pitt, Channing Tatum, Harry Styles, and Henry Cavill.

Here, he explains how he creates each look, and why they are increasingly popular.

Plastic surgery is continuing to grow in popularity, and just over 17 million people in the US received a cosmetic procedure last year.

The population receiving these procedures is still overwhelmingly female, but the number of men who had a cosmetic surgery in 2016 increased by 3 percent over 2015, and was up by 28 percent since 2005.

Minimally-invasive procedures, like lip ‘menjections,’ as Dr Maercks calls it, surged by 74 percent from 2015 to 2016.

Indeed, according to Dr Maercks, his client base has ballooned in just a few months.

The trend, he says, has been driven by the age of selfies.

‘Social media, dating apps, selfie culture… that culture has a big part of it,’ he explained, adding: ‘Even our politicians embody and celebrate narcissism – we have never been more encouraged to analyze our facial features.’