So in the last couple of weeks, my Dad has found out that he has another daughter. He had a brief fling with her Mum many years ago (was married with 2 young kids at the time). Her Mum went back to her own country and she was adopted as a baby. She tracked him down via extended family on one of those DNA websites. She has known her birth mum since her young adulthood and has had a good life, where she was loved and cared for very much.
Her and Dad have exchanged some emails, and he has told us. He is pretty shocked (he is the only one shocked - he has been a fairly poor husband for most of my parents marriage - but that's their business). He isn't evil - he's just selfish and immature. Anyway, that's not the point.
The point is that I really want to get in touch with this woman and I hope that we can form some sort of friendship. I don't want to freak her out or scare her off, but I want her to know that she is warmly welcomed by her half siblings. I have found her Facebook profile - would I be overstepping to send her a friend request and a message?