The 18-year-old says she wears the control shapewear garments to give herself a curvier figure and bigger bottom, reports femalefirst.co.uk.
A fan tweeted: “Lmao Kylie just posted a picture on snapchat and you can see her b*tt pads.”
Kylie was quick to reply, telling her 12 million followers: “They are spanx … here’s the link if u want some.”
The “Keeping Up With The Kardashians” star also revealed she is wearing waist trainers, made famous by her stepsister Kim Kardashian. These are based on the traditional corset and aim to cinch in the waist, giving a more hourglass figure.
She tweeted: “Thanks @premadonna87 for keeping my waist snatched. http://Whatsawaist.com.”