Claire licked her lips, throat feeling sore and parched. She decided she would keep drinking until her throat cleared up. She was about to fill up another bottle, but instead decided to just drink from the tap. She turned the faucet on high and put her head under it, not caring as the water splashed over her face. She just slurped in what she could from the delicious waterfall. As she drank, her head shifted, almost pleasurably, mouth stretching out into a long muzzle. She put the stopper in the drain and drank eagerly from the forming puddle, tongue flicking out and lapping water into her mouth, drinking constantly with hardly any time to breathe.
Claire put both her hands down onto the counter, nearly denting the hard surface as powerful muscle twisted into her arms. Soft, fluffy hair spread across her skin like wildfire, covering her entire body within seconds. Her heels stomped against the ground as they quickly shifted into sturdy hooves, legs bulking up and becoming horse-like. She pulls herself up from the sink, water still running, and takes a deep, whinnying breath, panting now as she brings air into her lungs, chest surging forwards with heavy titflesh as her body grows taller and more muscular. Before the changes have a chance to slow, she dunks her head back into the basin and continues drinking deeply. Her cock grows in quickly, mutating rapidly as it charges forwards, sandwiched between her body and the counter. Rings of nubs ripple out from her meaty length, she dribbles pre lustfully as her mutant horse cock reaches 2 feet long. Her balls are pumped full of viral semen, sloshing around as they reach basketball size. Her pinkies and ring-fingers then meld together into second thumbs, and she pulls herself out from the water for the final time, reaching a hand down to her massive balls to give them a squeeze, groaning in deep pleasure before breaking out into a delighted, feral whinny.
There's a creak at the front door. Someones coming home, it seems.