At first, Soushi had hesitated going very far when touching Kazuki, because he wasn't sure what this new body of his really was. As much as he wanted to touch Kazuki, though - needed to touch Kazuki - he forced himself to hold back, just to make sure he wouldn't accidentally assimilate anything. The medical scans spoke against that; while his body was not exactly human, it worked like a human's, and any Festum-related abilities were completely under his control.

For the first few nights, Kazuki slept on the couch of his room. After making sure any accidents weren't going to happen, Soushi allowed Kazuki to sleep next to him in the bed. It was comfortable, he had to admit. Lacking the feeling of there being anyone close to him for the few years he had been on the Festum side had made him appreciate the warmth of someone's body against his own.

That night, he wrapped his arms around Kazuki.

Kazuki was all too happy to snuggle closer and embrace him in return, and that touch, the closeness, the smell of Kazuki's hair; everything suddenly made Soushi aware that Kazuki really was there in his arms. He was really here, holding him - and Soushi's body reminded him that it definitely worked like that of a human. He found himself bothered; aroused, even, and he drew his fingers through Kazuki's hair. He wanted more; needed to feel all of Kazuki's body against his own, and he knew Kazuki wanted the same thing.

He stopped thinking and pulled Kazuki's shirt off then moved in for a kiss. Kazuki was all too eager to respond and to remove Soushi's shirt as well, and then they were just all over each other, unable to hold back anymore.

His body definitely responded and worked like a human's, Soushi concluded. He had needed to feel Kazuki's body against his for so long, and the way Kazuki moved against him told him the feeling was mutual. Whatever doubts he had had of his own body disappeared; he could tell that Kazuki hadn't feared a thing to begin with and had just wanted to hold him.

Every touch, every kiss, all the pleasure, even the slight pain that Soushi knew would leave him aching tomorrow made reminded him that this body, even if rather unique, was still human, and Kazuki accepted him as whatever he was.

His only regret came in the morning of the next day as he realized that whatever they had done hadn't been much different from what they had been doing before – and that had pretty much been two awkward teenagers fumbling around. Thinking back, all he knew about how to do this was from two years back, and his knowledge was more than lacking. Was he even good at this? Rather, had he ever been good at this? Was it that just Kazuki let him do whatever, never complaining due to the old guilt issues?

He wanted to know more; he needed to know what Kazuki wanted and how Kazuki wanted to be touched. After being away for so long, this time, he needed to do this right.

This would require research.