How do reveal my situation to my friends?

I have asked a questions earlier as to what people would think of me for having a father who conceived me as the result of him having (after having been heckled into doing it by a pair of teenagers that wanted to see something sick, and my mother was, I regret very much to inform, very much drunk) at the age of ten. I know that this is as shocking as could be, but, it happened, the paternity tests have confirmed such. He is now going to adopt me, I am now in my twenties and do not have a family as the state removed me from both my mothers' and stepfathers' custody when I was 13 for repeated acts of abuse. He deeply regrets having done what he has and wants very much for me to become his own. I have very happily said yes, I have known him since I was 16 and unfortunately there has been a lot of upsets in the interim (the woman he was once married to proved to be extremly selfish and by way of sending him letters (we kept in contact mostly through them back then) in my name that made him believe that I thought him to be a pervert and that I did not want to be with him at all) he has told me that he was fearful to ask given the nature of the situation. I would like very much to have some input on this. We now have a good relationship and, well, I'm tired of having holidays over the phone, I want a family, and he is now beginning to come out from the hurt of her betrayal. He is a far better man than this mistake indicates, he is also something of a celebrity (you may hear of this soon because of that, although I hope not). I would like to have some input as to how to approach my friends with this news. They know of my childhood and are generally very supportive, but, I fear that the fact that my dad is so young will make them aprehensive to such. I know that they will be my friends no matter what, I just, don't know how to approach them with this. Any help? Please?