Sarah spotted the first of the pimples on her forearm and frowned. She has never gotten one here before. Still frowning she pinched the pimple. Sharp pain immediately burst up and down her arm, but the lump did not pop. She wiped the tears from her eyes and tried again, this time gritting her teeth against the pain. This didn't last long, however. The pain was just too intense to keep trying. She plopped down at the end of her bed and couldn't stop herself from weeping.
She absently scratched the top of her head, and more pain erupted through her. Sarah gasped and shot off her bed. She ran to the bathroom down the hall and looked in the mirror. She had to wipe tears out of her eyes before she could see anything...she wished she hadn't. Like the one on her forearm three more pimples stood on her brow, just above her left eye, one on her chin, and another on the lower lobe of her right ear, like a grotesque earring. She gaged at the sight of these and turned away from the mirror, she didn't dare inspect the top of her head. She didn't really need to anyway. She knew what she'd find up there.
Reluctantly she turned back to the mirror. Tears trickled down her cheeks. What's happening to me, she wondered. It was then she realized that the pimples didn't look like ordinary pimples. They lifted out of her skin like round, dark, decaying teeth. She stepped closer to the mirror. God, this was gross. But the more she looked the more she knew these were not pimples at all, but something else. Something worse, if that's even possible.
The skin on the tip of her nose began to ripple and wriggle, as if many tiny worms had somehow gotten inside that little nub. Absolute horror froze her where she stood. And, before her eyes, a dark lump the size of kernel of corn rose from the skin on the tip of her nose. Sarah began to tremble. Oh God, oh Jesus, she thought She found she couldn't even speak.
Here's an easy one. Just rewrite the story and add an ending. Easy as that. This is just a blueprint for an even greater story...and I can't wait to see what some of you can come up with.