Kylie Jenner endorses butt and breast plumping cream with racy pic

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Kylie Jenner's 18th Birthday Plans Revealed - Why She's Going to Canada!

Kylie Jenner is using her killer curves to help endorse a beauty product.

The 17-year-old reality star Instagrammed a photo of her butt on Thursday, claiming that she uses a cream to help enhance her derriere (among other body parts).

WATCH: Kylie Jenner is Going To Spend Her Birthday in Canada Where Drinking Is Legal at 18

"I love sharing my beauty secrets with you guys and this is a favorite!" she wrote, alleging that the product helps her "maintain and accentuate" her curves.

While Kylie has admitted to getting cosmetic procedures in the past -- she confessed on an episode of Keeping Up With the Kardashians that she gets temporary lip fillers --, it appears she's now taking a more natural approach.

Photos of the youngest in the Kardashian/Jenner clan:

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Kylie Jenner endorses butt and breast plumping cream with racy pic
can I wear a sports bra & boxers all day ugh
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LOS ANGELES, CA - DECEMBER 15: Rapper Tyga and Kylie Jenner grant a Christmas wish to Joshua in the Cancer Ward at Childrens Hospital of Los Angeles and LA Gear Presents Teen Impact Holiday Party Hosted By Tyga At Childrens Hospital LA on December 15, 2014 in Los Angeles, California. (Photo by Lilly Lawrence/WireImage)
LOS ANGELES, CA - DECEMBER 15: Kylie Jenner and recording artist Tyga arrive bearing gifts at the LA Gear Presents Teen Impact Holiday Party Hosted By Tyga At Childrens Hospital LA on December 15, 2014 in Los Angeles, California. (Photo by Lilly Lawrence/WireImage)
LOS ANGELES, CA - NOVEMBER 26: TV personality Kylie Jenner and rapper Tyga attend the Los Angeles Mission and Anne Douglas Center's thanksgiving meal for the homeless held at the Los Angeles Mission on November 26, 2014 in Los Angeles, California. (Photo by Tommaso Boddi/WireImage)
LOS ANGELES, CA - DECEMBER 15: Rapper Tyga and Kylie Jenner grant a Christmas wish to Dereka in the Cancer Ward at Childrens Hospital of Los Angeles and LA Gear Presents Teen Impact Holiday Party Hosted By Tyga At Childrens Hospital LA on December 15, 2014 in Los Angeles, California. (Photo by Lilly Lawrence/WireImage)
TORONTO, ON - JUNE 15: Kendall Jenner and Kylie Jenner host the 2014 Much Music Video Awards at MuchMusic HQ on June 15, 2014 in Toronto, Canada. (Photo by Ernesto Distefano/Getty Images)
TORONTO, ON - JUNE 15: (L-R) Presenters Kellan Lutz, Kendall Jenner and Kylie Jenner at the 2014 Much Music Video Awards at Much HQ on June 15, 2014 in Toronto, Canada. (Photo by George Pimentel/WireImage)
TORONTO, ON - JUNE 15: Kendall and Kylie Jenner arrive at the 2014 MuchMusic Video Awards at MuchMusic HQ on June 15, 2014 in Toronto, Canada. (Photo by George Pimentel/WireImage)
TORONTO, ON - JUNE 15: Kendall Jenner and Kylie Jenner host the 2014 Much Music Video Awards at Much HQ on June 15, 2014 in Toronto, Canada. (Photo by George Pimentel/WireImage)
INGLEWOOD, CA - AUGUST 24: Kendall Jenner, Kim Kardashian and Kylie Jenner arrive to the 2014 MTV Video Music Awards at The Forum on August 24, 2014 in Inglewood, California. (Photo by C Flanigan/Getty Images)
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LOS ANGELES, CA - NOVEMBER 26: Reality TV Personality Kylie Jenner attends the Los Angeles Mission Thanksgiving meal for the homeless at Los Angeles Mission on November 26, 2014 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
LOS ANGELES, CA - NOVEMBER 23: Reality stars Kendall Jenner, Kylie Jenner and Khloe Kardashian arrive for the 42nd Annual American Music Awards held at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Albert L. Ortega/Getty Images)
LOS ANGELES, CA - NOVEMBER 23: (L-R) TV personality Kylie Jenner, singer Sam Smith and TV personality Khloe Kardashian attend the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Jeff Kravitz/AMA2014/FilmMagic)
LOS ANGELES, CA - NOVEMBER 23: TV personalities Kylie Jenner and Khloe Kardashian (fashion detail) attend the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
LOS ANGELES, CA - NOVEMBER 23: (L-R) TV personalities Khloe Kardashian, Kylie Jenner and Kendall Jenner attend the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Christopher Polk/AMA2014/Getty Images for DCP)
LOS ANGELES, CA - NOVEMBER 23: Kendall Jenner, Khloe Kardashian and Kylie Jenner attend the 2014 American Music Awards at Nokia Theatre L.A. Live on November 23, 2014 in Los Angeles, California. (Photo by Kevin Mazur/AMA2014/WireImage)
CALABASAS, CA - OCTOBER 10: (EDITORS NOTE: License plate has been pixelated) Kylie Jenner is seen October 10, 2014 in Calabasas, California. (Photo by Christopher Polk/WireImage)
NEW YORK, NY - SEPTEMBER 07: TV personality Kylie Jenner is seen in sohoon September 7, 2014 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - AUGUST 28: (L-R) Kendall Jenner, Tommaso Bruso and Kylie Jenner attend DuJour Magazine's Jason Binn celebrating Kendall and Kylie Jenner's Bruce Weber shoot presented by Juice Press at Lavo Restaurant on August 28, 2014 in New York City. (Photo by Mike Coppola/Getty Images for DuJour Magazine)
NEW YORK, NY - AUGUST 28: Kylie Jenner (L) and Kendall Jenner attend DuJour Magazine's Jason Binn celebrating Kendall and Kylie Jenner's Bruce Weber shoot presented by Juice Press at Lavo Restaurant on August 28, 2014 in New York City. (Photo by Mike Coppola/Getty Images for DuJour Magazine)
INGLEWOOD, CA - AUGUST 24: TV personalities Kim Kardashian, Kendall Jenner and Kylie Jenner attend the 2014 MTV Video Music Awards at The Forum on August 24, 2014 in Inglewood, California. (Photo by MTV/MTV1415/Getty Images for MTV)
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WATCH: Khloe Kardashian Defends Kylie Jenner's Lip Fillers

In June, she revealed another secret to how she keeps her curves so curvy, and in turn debunked plastic surgery speculation.

"To whoever thinks I had breast implants, there's a whole lot of tape in here, holding these up," Kylie said in a Snapchat video, before reaching inside her dress to show off her taped breasts.

The youngest Jenner sister hasn't let critics of her curves stop her from posting scantily-clad pics on social media. In fact, she defended her scandalous images -- much like the one she posted of her butt -- when she spoke with ET.

"You are always going to have haters and negative comments... so we try not to read them," Kylie said. She added that she rarely has regrets with the pics she posts.

Kylie Jenner: 'I Never Feel Pressure to Be a Good Role Model'
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