I have twin boys, approaching 4. They exhaust and delight me in equal measure. True they are noisy, they bang, they wrestle, they have a stick and stone obsession. But they are loving and caring, look out for younger children in the playground and have a wonderful sensitive side. One loves to dress up in mummy's shoes and scarves and even advises mummy on what to wear. The other loves to play with my jewellery. Both were beside themselves when my sister brought out her 1970s Fisher Price Dolls House! I was brought up in a predominantly female household and was delighted to find out that I was expecting boys, so my experience and expectations are quite different, but I agree with earlier posts that there's no need to worry. Many of my male friends have brothers and no sisters, they have enviously close relationships and they dote on their mothers, so you have lots to look forward to!