Power Girl

Outside of this universe was an infinite amount of variations, each with alternate versions of you and I. In one universe Superman's cousin is Supergirl, a bright blue blur just as strong as her cousin. In another universe, instead of Supergirl, Kara is the busty blonde powerhouse in white known as Power Girl.

She's long been separated from her home dimension, living in this one with her alternate counterpart Supergirl. It was hard to adjust to, but she felt quite at home in this universe. She was a rather effective hero, certainly superior to Supergirl in a few notable aspects, and for a while this place felt like home.

So when she was casually flying about and she started seeing double, she knew something was wrong. It was like she had double the eyes now, and her head was starting to spin from the confusion. It felt like it could split apart, like her brain somehow doubled as well and was now too large for her skull. She gripped her head and tried to push it back together, feeling it widening and widening more. But why did it feel like she had four arms now? And was she seeing things or did she have four legs as well?

Their was a pop, and Power Girl no longer felt any pain. She also no longer felt any clothes lining her body, which she probably needed to deal with. What got her attention however was the sight right in front of her: a second Power Girl staring right at her.