Takashi visibly enjoyed watching and listening to her talk. He didn't relax, exactly. His posture was tense when either of them was speaking, and every moment in between. But when he was speaking, he seemed tense and nervous, as opposed to when she was speaking, when he seemed tense and excited. It was a subtle difference, but clearly visible from the expression on his face. Whenever she was talking, it was like he couldn't help but smile. However, when she mentioned modifying her body, he looked away for a moment and his brow furrowed. He seemed pensive even as he resumed looking at her and listening.
"No," he replied quickly. "I don't have any siblings."
"Although," after a quick thought, he put on his foolish grin and continued. "Maybe they'll try again after I failed so spectacularly. They're not that old, I don't think."
He didn't let the moment linger on this for very long before he resumed his pensive look.
"I've never thought about it before," he looked away and seemed to relax now, deeply in thought as he talked. "But if I donated my genes to create a new person, then that new person created a new body for themself, I would probably feel a little hurt. Like my genes weren't good enough. Why else combine genes with someone else, except to say that you think your genes are worth passing on to a new generation?"
Takashi looked up and seemed to suddenly remember where he was.
"Please don't take what I said the wrong way, I think you are beautiful and that any modifications you made are the truest form of self-expression." Takashi was back to his old nervous self. "You've literally expressed yourself by changing yourself. Maybe to make your external form match how you see yourself? I don't know. That feels a little presumptuous on my part. Anyway, I support your decision. I was just trying to think about how I might feel if I were in your parents' situation."