Batman doubled over in front of the bat-computer at his cave, his eyes wide and darting as he burned up from the inside out. Shoving the chair he sat on forcefully out of the way he staggered for a few feet before collapsing to his knees. Underneath his costume and cowl his skin was turning jet black and scaly, his gloves ripped as his fingers grew into sharp claws, poking out the tips of his gloves as Batman rolled onto his side from the pain. His boots burst open as his changing feet outgrew them, his new reptilian toes flexed as they shook off the leathery remnants over his feet. Little tears could still be heard as his muscles throbbed and grew, his arms and legs getting thicker as he winced and gasped. Eventually the pain ebbed away and the Dark Knight was able to stand awkwardly on his new clawed feet.
"I... I've got to find the others."
Looking back to the computer he could still hear Kara cry out as she changed on her end, grabbing the phone receiver he tried to tell her to meet him at the Hall of Justice.
***
Vixen smiled as she looked down from her perch on the roof of a building, across the street she watched as a trio of goons were carting electronics from a store they had broken into, one with his hands full of computer parts while the other pair hauled TVs.
"Perfect end to a lousy night..." Grasping her totem necklace she took on the aspect of a lion before leaping down to the ground gracefully and running full force into the thugs, her new feline strength and agility allowed her to flip over the two loading the truck and high kick them both, then summersault back and swipe at the third with her fingers, magically made razor sharp like lion's claws as the man staggered back and collapsed on his rear.
"Give it up guys, your no match for..." A buzz from her ear piece distracted her as she caught Batman's voice on the other line. "Batman?... WHAT?! What the hell are you talking about? I feel fine."
Then she froze, her body recoiled in pain as she felt pin needles shoot through her. Wrapping her arms around her sides Vixen moaned as her skin started taking on fur, a dark brown hide of fur started spreading up her arms and legs as she was forced to her knees. The thugs looked on in confusion as the woman writhed in pain in front of them, practically growling like a jungle cat as a lion's tail shot out of the back of her costume, rearing up she pulled at her top, prying it open to give her heaving chest room to breathe as her muscles swelled and grew, her breasts expanding several cups in the process. Eventually her shoes and gloves tore apart as her fingers and toes developed razor sharp claws of their own, flexing like a cat's as she dug down on all fours crying out in pain.
Looking back at the crooks her eyes were now feline and yellow, her sneer showing fanged teeth as she hissed at them.
"RUN!"
***
Clark Kent had doubled over in his high rise apartment, shooting pain racing through his limbs as he watched his skin change. Gripping the wall for dear life he watched as his muscles throbbed and grew as blue scales crept up his arms and legs. His feet grew and mutated from under him, the toes splaying out and developing black claws just like his hands were. Hunching forward his shirt split behind him as he outgrew it, leaving him in the taters of his pants as he stood catching his breath.
With the pain fading for now he got up on unsteady legs and made his way to the bathroom mirror to look at himself, he gasped at the reptilian eyes that stared back at him, the blue scaly skin he now had all over his body, flexing his fingers he watched the sharp claws flex as he looked down at the larger muscles he now had.
This was bad, he had to find the others to see if they were OK.