Elizabeth picked up the potion sets and took them with her into the bathroom, she placed the two boxes next to each other before opening the red case first, looking at each bottle gleefully. She had always wanted to experience a real magical transformation firsthand, and now her wish was being granted. The big question for her was, which bottle to choose?
"Hmm...," she said to herself, pondering the question. The Pig vial seemed out of the question as she was not quite sold on the prospect of potentially gaining a bunch of extra weight yet, same with the Sheep vial as having all that wool on a warm summer day might be uncomfortable. "Rat... Nah. Dragon... Nah. Monkey... Nah." Eventually, she selected... "Snake!" Elizabeth said, finding the notion of being part snake to be most exciting. She held up the bottle for a closer look of the minty green liquid. She then decided to check out the blue box, none of the bottles standing out except..."Gemini!" She said while holding up the bottle for a closer look of what appeared to be two swirling liquids.
Elizabeth sets the two bottles aside before taking off socks and shoes and then her clothes: First her skirt, then her shirt, and finally her bra and panties. She piled them together on the counter beside the sink, and stood there, looking at her naked body in the mirror. She next takes a measuring cup from of the boxes and carefully pours half of the Snake bottle's contents into it and did the same with the Gemini bottle. She downed the conduction in one gulp, finding to be a minty combination of sweet and sour.
Elizabeth licked her lips before gasping as she saw her reflection in the mirror, seeing her eyes now amber with slit pupils. "Whoa! That wass fasst!" She hissed before starting to feel warm sense of euphoria coursing through her veins. All over her body, she watched in stunned fascination as her neck lengthened an inch while her scales start forming on her skin. She then felt a dizzying sensation that forced her to sit down on the edge of the tub, finding her legs fusing together into a snake's tail. The occurring changes cause Elizabeth to steadily aroused, resulting in a reflex as she stroke her vagina. But before she was done pleasuring herself, realized there are more than two hands stroking her nether regions and opened her eyes in astonishment.
Elizabeth rose up from where she was sitting and examined herself in the mirror after her transformation finally ended. She was still human from the waist up, though scaled with four arms and two heads on her shoulders. Each head still has her short black hair, matching her black scales which have a pattern of white bands every three to four inches. From the waist down is a giant snake tail instead of legs, Elizabeth finding that she turned herself into a sexy two-headed naga.
"Well...," One of Elizabeth's heads said as she looks at her new sister with a smile, "at leasst we sstill look good."