Credit: Kylie Jenner on Twitter Photo: Kylie Jenner Sports Sexy Black Bikini

Let's get a few things straight: Kylie Jenner is looking good, having an amazing summer, and is growing up right before our eyes.

Just two days after celebrating the 4th of July with a big party at her dad Bruce Jenner's house, the Keeping Up With the Kardashians teen shared a bikini pic reminiscent of an Amanda Bynes fan-submitted pic.

The photo was posted on July 6 without a caption. We guess the teen reality star is letting her body speak for itself. And boy, does her body look slamming in that tiny black bikini. The 15-year-old is also playing with her hair and wearing stylish black sunglasses.

Back on July 3, Kylie tweeted about change in her life. "Yes, I'm changing," she wrote. "Thats what you do when you grow up.. If I was the same person I was when I was 10, it'd be a bit strange don't u think?"

While she wasn't necessarily speaking about her body, it is pretty noticeable that we're seeing a different Kylie now than we did years ago when KUWTK began.

It doesn't look like she'll have any trouble getting a modeling career started if she's this talented at taking selfies.

You go, Kylie! Work it.

Source: Kylie Jenner on Twitter

Credit: Hollyscoop Photo: Jaden Smith Talks About Kylie Jenner (VIDEO)