Check out a video of Kylie Jenner introducing Caitlyn to her new lip plumper!
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In the Snapchat preview, Kylie says, "Kylie Lip Kit Preview." Caitlyn adds, "We have the same Kylie lip stuff on." Then, the two make kissy faces to the camera.
Last month, Kylie shared with Yahoo! about her beauty products, "I'm going to keep that a secret, but it's a kit and I am super invested. I have been going to the factories, making the shades perfect, because I'm super particular about my lip color. I wanted to make three perfect shades to start off."
It is still unknown when the lip plumper will be available to buy. We'll just have to wait and see!