What If Natasha Romanov Became A Super-Soldier?

As a reminder, this is a THREE upload week! Plumbing has been hell.

Steve Rogers and Tony Stark were dead. Tony Stark had managed to get the drop on the now deceased super soldier at the battle in Siberia, Stark's rage over Bucky Barnes having murdered his parents clouding his already limited self-control. Steve had been fast, but he'd been pulling his punches to keep from truly harming Tony and to protect his best friend from the genius-billionaire-playboy-philanthropist's fury. But it had cost the Star-Spangled Man his life as he hesitated just a moment too long, allowing for Stark's Iron Man suit to fully charge and blast a circle shaped hole right through Steve's chest. In an instant, Captain America was dead. And then Tony Stark was dead, as The Winter Soldier used the last remnants of his strength to pin Stark down and ram a hiddin knife into Stark's throat. Barnes was now missing, again, and the Avengers had been ripped apart by the carefully laid plans of Zemo...Who had also vanished without a trace along Prince T'Challa, now revealed as the Black Panther. The new King of Wakanda had been kind enough to deliver the bodies of Earth's two iconic defenders to the United Nations and had disappeared with Zemo. With the Avengers who had sided with Cap now all locked up in the RAFT super-max prison, Natasha Romanov was out of friends and on the run. The Black Widow had no choice but to burn her identities and go to ground in rural Norway. But first she had to see the spot where two of her close friends had turned on each other and perished as vengeance had consumed them. 

One secret flight to Siberia later and Natasha stood on the frozen tundra, staring down into the enormous crater where the HYDRA facility was crumpled into a ruin of twisted old machinery and rubble. This is was what she had come to see; the last place where her friends had been alive. She had to have the closure. It honestly wasn't much. A handful of scorch marks on already blasted concrete and one large, dark stain on the floor next to an abandoned combat knife. And, of course, the Shield. T'Challa hadn't collected it with Steve's body, and a fine layer of ash, dust and snow covered in. Natasha had picked it up, feeling a pang of guilt. Maybe she SHOULD have tried to actually stop Steve and Barnes. Maybe she shouldn't have stunned T'Challa...But regrets and guilt were for children. She was the Black Widow, and she had gotten...whatever it was she'd come here for. Getting out of the ruined bunker was harder than it had been getting in, causing Romanov to detour through sections of the base that hadn't been destroyed in the fight. And one of those sections had been the cold storage lab, where the serum to create the imperfect Winter Soldiers had been stored. She roamed through the slowly defrosting racks of serum as she made her way to the exit, eyeing the ruined vials. But then she had seen it; a perfect, supposedly 'perfectly stable' super soldier serum, saved by a back-up battery that had kept it in cryogenic stasis. That was when the Black Widow got an awful idea. In desperation, in fury, in remorse, Natasha Romanov freed the vial from it's cold prison and, aftera little hunting, had found a usable syringe. She had quickly filled the needled delivery system with the serum.

"Here goes nothing..." The redheaded spy muttered, eyeing the Shield as she slowly inserted the needle into her skin and slowly injected herself with the serum. The pain was intense and immediate, the worse thing she had ever felt, but Natasha stayed conscious enough to finish the injection before passing out on the cold concrete floor for...a very long time. And while she was unconscious, her body had changed. Her muscles grw more powerful as her bones became more dense, her skin, more impregnable, her body functions, her metabolism and her reaction times shifted as her entire genetic code was re-written. Her hair even turned blonde as she grew severtal inches! When Natasha had finally awoken many hours later she was amazed at what had happened to her body! The Black Widow had always been athletically gifted but now she was able to leap three times the height of a normal person! Able to lift incredibly heavy things with little effort! Getting out of the HYDRA base had been incredibly simple even with her untested new physique! Not even the biting cold of the Siberian tundra seemed to sting as much now! And the Shield she held...

Natasha never did make it to Norway. Instead she had taken up the Shield and had donned a new costume. Steve had been instrumental in turning the once ruthless spy into a good person, someone who had stopped trying to do the practical thing and instead tried to do the right thing. She would never be as squeaky clean as Rogers had been...But Natasha had try. And so, the 'Liberty Widow' was born.