[The warmth of Ichiru's body seeps though Zero's clothing, a reminder of how the child in his arms is both real and alive. Zero needs to go but at the same time, he can't just dismiss the worries and fears of his brother. Fingers seek out the identical mop of hair to his own, reminding himself he has time. This is much more important that anything else right now.]
I'm sorry. Take as long as you need. I didn't think of how worried or upset you might be waiting for me.
[He's so used to being alone that sometimes he forgets how much Ichiru depends on him.]