It was just an experiment, not meant to be anything more. Marie was terrified of the potential outcome, but Stein claimed that he had to know. There was nothing else that he could do to test it himself. The time had come for Marie to aid him, and she was trembling in fear as her hand closed around the screw.
"Franken, what if this kills you?" The fear was evident in her voice, in her wavelength, in the very way the woman was holding herself.
"Marie, I am always very careful with experiments on myself. Let's face it, finding out if the metal I created does or doesn't conduct electricity is incredibly important, since all of your abilities are electricity based. It is better to find out now than it would be to find out on the battlefield." Stein said with a straight face, curiosity welling up in the man even as he spoke.
She was still trembling when his soul reached out to hers and she turned her head and covered her mouth with her free hand as tears slid down her cheek. "I'm sorry," she muttered into her hand an instant before she transformed.
She landed in his hand, but instead of wrapping around his wrist the tendrils for Izuna wrapped around the metal screw in Stein's head and he felt a brief moment of panic as he could feel the electricity surging around the two of them. The screw tingled just barely.
None of it touched him though. A moment later Marie was in human form, her hand wrapped around the screw, just as planned, her Internal Combustion being forced outward by their two very powerful wavelengths.
Again, nothing happened. With a smirk Stein looked at the woman, only to find that her eye was closed.
"Marie, I'm alive, and none of my skin has blistered off." Stein said smugly. "It seems that I did create a polymer that doesn't conduct electricity. This means that we don't have to worry about resonating anymore- your power shouldn't hurt me, and even if something does go wrong, I can still match my wavelength to yours to nullify it."
Perhaps he was a bit too smug. Marie's face contorted. "You put me through all of that and you could just nullify any bit of my wavelength coming at you?!"
A moment later Stein was regretting the decision of having a screw through his skull. His head was ringing and he knew without any need for further experimentation that he couldn't nullify Marie's hammer transformed arm. He also knew that a metal on metal collision was something that he never wanted to experience again.
A/N: This was written by a one-word prompt challenge of "Metal" from TheAUWalker. I don't own Soul Eater.