Everyone is different, but my husband is an only child and has always wished he had a brother or sister. I think that he misses someone to have spent his childhood with. Someone to share all his childhood memories with. I on the other hand am 1 of 5 children. so, i just know having brothers and a sister. Needless to say we have 2 boys. Children are always a blessing. That being said, 2 is plenty for me.