50th Anniversary Gift

At their 50th anniversary, the wife decides to give the husband a very special gift. She said, as a gift, I'll give you a chance to ask me anything and I'll tell you the truth.

Husband see's a chance. He said, you know, it's about Adam. I have always wondered about him. He doesn't look anything like our other 6 children. I was always suspicious about him. I think I may not have been fair to him as well because of this. I have to ask you, does he have a different father?

Wife pause for a second. then says: yes.

The husband feels sad, but still asks, who?

The wife replies: you.