Zack just came in to me, hugged me, and said, "You are a good mom to me" in such a sweet voice.
He then said he wanted a brother to stay with him "all day and all night". Since a baby brother is impossible, I asked if it would be ok to wait for his older brothers (Rick's, ages 22 and 23, who Zack adores) when they come home next month, and he said that would be OK.
All of that was really sweet. But I feel so bad when he asks for another brother or sister. Makes my heart hurt for my adorable little guy.