Acid Spray

Tyler and some buddies were hunting down a mythical beast, one whose blood was said to have special healing properties. Tracking its footprints, they were led into a clearing in the forest with a small pond. "Well, I guess that's it then," he turned towards his two friends, visibly disappointed. "We can't track it if it swims underwater." Suddenly, an eerie quiet befell the forest. All of the birds and insects stopped singing and buzzing and humming. Bubbles started rising to the surface of the water.

"Look out!" Tyler's friend called out, pointing at a menacing figure quickly rising out of the water behind him. Tyler turned around and fired his handheld particle-beaming weapon without aiming. It was a clean shot, straight into the creature's abdomen. It immediately stopped advancing towards them, and after a few seconds of writhing in apparent agony it exploded. Its blood sprayed everywhere, completely showering Tyler in a purple liquid of high viscosity. Within moments, his clothes began to disintegrate. Cotton fibers will dissolve upon contact with certain chemicals contained within the creature's blood. After just a few seconds, he was completely naked.

"Well, shit," Tyler said. This was not the outcome he was hoping for. Due to the ringing in his ears, he hadn't yet realized his own physiology was changing as well. His face was losing much of its angular features, and the width of his shoulders had narrowed. His butt expanded along with his hips, and two lumps of fat began protruding from his chest. His penis and testicles withdrew into his body, replaced with a small opening protected by folds of skin. The "healing" properties were not so much regenerative as restorative, and all humans begin their life in the womb as female.

Out of sheer shock or tension, his friends began to laugh. Tyler looked down and saw the body of a young, naked woman. He turned his weapon towards his friends, flustered with embarrassment. "If either of you mention this to anybody, you will be evaporated."