Because a gif is required. I know we did an article not too long ago showcasing their transformation via the wonder of photos, but there weren't any Gifs doing the rounds at the time.
Here is what happened to Kylie Jenner's lips in the space of a year. Here's to 2015! She turns 18 this year, so we shudder to contemplate the fate of her face now that she doesn't essentially have to get mawm Kris to OK her decisions.