Why did you adopt when you already had 3 children?

I was talking to a friend of mine today and she was telling me that her mom was curious about why I adopted 2 little girls when my 3 sons were nearly grown. I know people adopt for a variety of reasons, one being they can't have children. That obviously wasn't our reason.  One reason honestly, was that I felt so full and blessed in my relationship with my husband and kids that I couldn't imagine not sharing it. Love is like that. It desires to share itself. When I was younger, I thought that all families were happy families like the one I grew up in. There was always plenty of food, plenty of fun, plenty of love, and it was a safe place. As I grew older, I became aware of just how rare this kind of family was. I learned that there are so many that grow up in broken homes, abusive homes, some even have no place to call home at all. When our youngest son was 2 we started fostering children. God was opening our eyes to all the children in the world who needed a family to love them. And there I was with extra food on my table, extra room in my home, and extra love in my heart. I feel like when God puts something on your heart... burdens it with a desire... it takes more effort not to do it then it does to do it. When God speaks to my heart it's like that commercial with the kid on that cartoon The Family Guy... He's standing there looking at his mother saying, "mommy... mommy... mommy... mommy... mum... mum... mum... mummy... mummy... mummy... Lois... Lois... Lois... mummy... mom..." And the mother is staring straight ahead like she's gonna lose her ever lovin' mind if he doesn't stop calling her. That's kind of what it's like. Well, maybe not quite like that, but ya know... the calling just doesn't stop. In fact the desire just grows stronger and the conviction deeper and you know it's one of the things you were created for. Anyway, I thought I'd just share that in case you were curious too!