[ Their expressions didn't really change because he appeared strange. In fact, Ichiru found him really peculiar and he was more or less interested in learning about the stranger, being a curious little boy that he was.
When his twin stepped away from them and towards the kitchen to help their parents Ichiru turned his gaze at the other's question. ]
Since I can remember. I don't recall a day when I was healthy. It's not too bad, but it won't ever go away. I hope you had fun.
[ He replied, through flushed cheeks. His fever was subsiding some but he was still a little dizzy from the weather taking a toll on him. ]