A... boobie!?

As I walked forward, the glowing grew more dull until it was more of a shining. I made it out in the darkness, and jumped in surprise. In front of me, was a single, wriggling, female breast, detached from its body.

I wouldn't have known what it was if not for the distinct nipple on the front.

At first I watched it. Then I bent my head down to get a closer look. As I made a lengthly examination it stopped. It wriggled forward. I jumped back, startled, and it, too, jumped back. As I went back to look it once more wriggled forward, as if curious. Then, suddenly, it leaped forward!