Controversial lingerie model Sarah Stage reveals she is using a WAIST TRAINER

A controversial lingerie model whose sexy pregnancy selfies turned her into an internet sensation has shared a snapshot of herself waist-training her already unbelievably tiny stomach in a leopard corset less than two weeks after giving birth to her son.

Sarah Stage, a 30-year-old from Los Angeles, came under fire during her pregnancy for posting a string of selfies showing off her seemingly rock-hard abs, with many critics claiming that maintaining such a tiny figure could be damaging to her unborn child. But despite their fears, Sarah’s son, James Hunter, was born at a healthy eight pounds and seven ounces on April 14 and the toned model couldn't wait to introduce him to her social media fans with a series of adorable images, along with a host of her own super slim selfies. 

And now the Sarah, who shared an underwear-clad snapshot of herself just four days after welcoming her son into the world, has revealed the secret behind her taut and toned tummy – the same kind of waist-training corset made famous by the likes of Kim and Khloe Kardashian.