Kylie Jenner at 2015 ESPYS
Kylie Jenner has been using PureLeef to enhance her butt and breastsJason Merritt/Getty Images

Speculation has been rife about Kylie Jenner's changing appearance, but the teen has finally revealed the secret to her growing curves. According to the E! reality star, she has been enhancing her butt and breasts with the help of a "plumping lotion", which allegedly shows results in just one month.

Months after admitting to having temporary lip fillers, the 17-year-old is promoting PureLeef's butt and breast plumping creams on Instagram, telling her 30 million followers that the products have "accentuated" her curves. Kylie wrote: "I love sharing my beauty secrets with you guys and this is a favorite!

"@PureLeef offers products with All Natural ingredients (which is important to me) to help maintain & accentuate your curves! @PureLeef's butt enhancement cream & Breast plumping lotion stimulate fat cells in the target areas. I started seeing results after only a month of consistent use. Love their products."

Explaining their products, PureLeef's website states: "We target women of different ethnicities with natural products to help safely enhance or slim their bodies into shape and keeping the curves you desire. PureLeef can be used on men as well."

The Keeping Up With The Kardashians star has been criticised for promoting the products on social media, with reactions including:

Despite the revelation of her beauty secret, many believe that Kylie's voluptuous curves are the result of cosmetic surgery. In April, the teen admitted to having lip fillers to enhance her pout, following several months of speculation over the sudden enlargement.

After promoting PureLeef, Kylie took to Twitter to dispel rumours that she and her boyfriend Tyga have tied the knot. The reality star tweeted: "Not planning on getting married anytime soon." Speculation was rife after the youngster shared a photo on Instagram flashing a ring on her engagement finger. Adding fuel to the speculation, the entrepreneur joked about getting married at 17 on her father Caitlyn Jenner's reality series I Am Cait.