So this is the last in this storyline. I might continue the AU though, not sure. If you want to see more of the Scientist Matthew, Artist Matt AU let me know! I might even start to bring other nations into it too, who knows!

Matthew had been working on his dementia experiment, feeling pretty excited. He had set up the percentage testing and have seen improvement on all the specimen. He was going to set up another one since this was a batch of ten. If the trend continued into the next test, he might feel confident enough to start giving the treatment to Kuma. He might finally be able to remember things! He was so wrapped up in the experiment that he didn't hear Matt approaching until he almost reached him.

Matt held up a prism. "Maybe you need to separate the light into colors to become seen."

Separating the colors? Matthew had never thought of that but it did make sense. If the original light was reflected back to become invisible, separating and reflecting back the right color would be how to become visible again. He would have to come up a chemical mix to achieve this but it made logical sense. Matthew smiled, hoping that he had just found how to become completely visible again. He gave Matt a quick hug and a peck on the lips before rushing off to try and figure out what mix of chemicals would work.

Matt stayed there for a second before blushing and following his Chickadee. It was times like this that he really did look like a Chickadee. Fluttering around his lab, looking at various things, climbing up onto high shelves completely unafraid. Though, Matt would prefer if he didn't climb up the shelves since there was nothing preventing him from falling. There had been a few times he had come in and accidently starled Matthew, causing him to fall backward. Luckily, Matt had managed to catch him.

Matthew climbed down, his arms full of various flasks and containers, which both terrified and impressed Matt. Once safely on the ground, he shoved them at Matt and climbed back on the shelves to get more. Matt started to look around for somewhere to put them since he was pretty afraid of dropping them. He didn't get the chance to put them down since Matthew quickly jumped off the shelves and ran over to another area, dragging Matt with him. Once they were to the area he had dedicated to mixing chemical gases, Matthew put everything into a basket and started selecting different containers to try mixing first, using Matt as his unofficial holder for the day. Matt had to struggle to catch everything that was quickly being handed, sometimes tossed, towards him. He lucked out with not breaking anything.

Matthew continued to work in a frenzy, both determined and excited.

Several weeks had passed. Over that time, Matt had to forcedly drag Matthew out of the lab several times so that he would eat and sleep. A few times he had to force him to shower too but he wasn't really complaining about those since he ended up showering with Matthew. Matthew over this time had some how managed to get more and more excited about the experiment. The early testing had shown some amazing promise and he had finally found the right combination of chemicals that acted just like a prism and reflected the perfect color if said color was mostly see through and put into it. This was it, he knew it!

The pair once again ended up in the lab again but this time, Matthew was putting the chemicals into the machine he had made all that time ago that accidently opened a gateway so he could meet the best person ever, though Matt would disagree with the best person part. Matthew filled the container, making sure it was pressurized but not overly so. Then he wheeled the machine over to the testing cage and set a rat into the cage. They both stepped behind the glass and Matthew began to enter the combination. With hands held and a hope, Matthew pressed the button.

There was a hiss of gas escaping as the rat was enveloped in the gas. They both waited for the gas to fully clear before stepping forward to check. Before their eyes, was a very visible and obvious rat. Matthew promptly burst into tears. Finally, the answer. He could be normal again! Matt comforted him and smiled to himself. He was glad that his Chickadee was going to be visible again.

"So, do you think we should do another experiment or do you want to ga ahead and do it to yourself?" Matt asked, stroking Matthew's hair.

"Now. I want to be visible now." Matthew said determinedly, wiping away his tears. Matt nodded. Matthew began to set everything up. He wrote down the combination for the machine and handed it to Matt, who went behind the glass and began to enter the combination. He look towards Matthew quickly. Matthew nodded and Matt pressed the button.

Matt watched as Matthew was engulfed in the gas and waited. Eventually, he saw a hand waving the gas away. A very visible hand. Matt smiled widely and came out, walking towards where Matthew stood. Matthew coughed a few times and looked at Matt. If Matt's smile was anything to go by, it had worked. Matthew quickly ran over to a nearby mirror and looked in it. There he stood, clearly visible. Though, something was different but he couldn't figure out what it was. Right now, he was too happy to care.

Matt came up behind him and wrapped his arms around his Chickadee, still smiling. He looked at both of them in the mirror when he noticed something. Matthew was glowing ever so faintly. Matt began to chuckle and buried his face in Matthew hair.

"What's funny?" Matthew asked, looking Matt in the mirror.

"You're glowing." Matt said simply. Matthew looked at himself again and found that it was true. That's what had been off.

Matthew started to chuckle too. "Better glowing than see-through." He kissed Matt happily. Matt didn't argue and kissed back. When the broke apart, they stood there smiling at each other like the adorable dorks they are.

"So… want to go out for dinner in celebration?" Matt asked.

"Sure." The both walked out of the lab, holding hands.