Kylie Jenner is 15 pounds heavier.

The 17-year-old reality TV star, who is known for her curvaceous figure, took to her Instagram account yesterday (01.03.15) and claimed she's piled on more than a stone in weight in 10 months.

Sharing a flashback photograph of herself in black leggings, a white T-shirt and blonde hair from last May, she wrote: ''throwback to when I was 15 pounds skinnier & had blonde goin on (sic).''

Meanwhile, the 'Keeping Up With the Kardashians' beauty recently admitted that she understands how important it is for her to post updates about her life on social media but believes the person she depicts on there is ''different'' to who she really is.

She said: ''I love to connect with people, but it became just a bigger door for people to judge me.

''I feel like, growing up, I haven't had a lot of room for error - I don't have room to make mistakes. You need to make mistakes to grow and learn, but I'm just a little different because the world is watching me, every single thing I do.''

She added: ''On Instagram I'm like a different person almost, I just show people what I want people to see.''