The Kardashian sisters call attention, not only for the gossip and history of their family, but also for their voluptuous curves that they are not shy to display. This time it was Kylie Jenner, the youngest of the Kardashian clan. Kylie loves spending time on instagram, posting many personal photos. Even when trying to differ herself from sister Kim, Kylie, 17, posted this friday new photos much in the style of her older sister, with her tiny waist and defined bottom, trademark of the Kardashian family.

Dressed in a navy tiny bikini, the Keeping up with the Kardashians star shared with her 20 million followers on instagram two new photos of her toned body.

This generated some controversy among her fans who became suspicious and accused the star of getting her first butt injections after much talk about her pumped lips. The fans continued with the accusations, mentioning the older photos of Kylie, showing much smaller lips and derriére. Although she denies having any surgery, the before and after photos leave fans with much to wonder.

Hollywood Life magazine talks about butt injections and that Jenner is very happy with the change, mentioning that her boyfriend Tyga enjoys (very much) his girlfriends' curves. According to them "she's thrilled with the results and isn't holding back from showing it off". A source close to the family said. "She's already got the face and body of a 30-year-old woman.

She needs to slow down and enjoy her youth before she loses it!". However, Kylie denies any surgery: "I haven't had plastic surgery. I've never been under the knife. People flashback to pictures of me when I was 12 and say 'Kylie's so different' but how can I look the same from 12 -18?" she says.

It's been a long month for the star.

On May 4th she posted some highly stylized photos where she appears with "black face", having to explain to her fans that it is all about lighting. Last weekend she attended Coachella with her sister Kendall, Justin Bieber and some other friends. And now she is making headlines again with her bootylicious photos.

What do you think about Kylie's transformation? Is it all natural aging?