Adoption after having bio children??

We started the adoption process through the state when our bio children were 10 and 12. Our DD, 12, wanted to stay the oldest and our DS,10, wanted a baby. That was their only requests. We talked about siblings and the kids thought it would be wonderful to help keep a sib group together. (they are very connected) We ended up submitting on sib groups under the age of 10, any race, issues based on case by case. We ended up being matched with a 2,3 and 4 yr old. (first time) After about 3 weeks it felt like they had always been in our home. I really think that it was because we listened to our bio children and knew their personalities. We did choose to wait until our children were older because of the "issues" that tend to come with children adopted from foster care. For us that turned out to be a very important piece as we ended up adopting another 3 children. All 6are special needs children. Our bio's were able to understand the how and why's of certain behaviors. As to the bonding...well the first three I bonded with right away. As did our bio children. The second set of three took a bit longer. They have attachment issues and came to us as a foster only placement for 6 months. We faked it til we made it. After about 7 months it didn't feel like we were babysitting. That was a tough emotion that I didn't expect because I bond really easily with children of all ages. I think that it was the same for our bio children. The ages and behaviors were just more difficult to deal with plus we didn't know if they were staying or not. I suppose we were gaurded. Hope that answered some of your questions.