The couple - who welcomed their first son on Christmas day 2010 - are concerned about him getting "doubly stigmatised" because of his unusual upbringing and have taken advice on how to deal with it when he gets older.
David, 49, said: "We`re going to raise him to be proud of who he is and understand that he came from a relationship that was taking the love we have for each other to a more dedicated and committed level.
"I think he`s going to have a lot of attention thrust upon him. He`s going to be potentially double stigmatised, because one of his parents is extremely famous and secondly because he comes from two dads.
"We`ve taken advice from counsellors. We`ve put a whole scrap book together about his creation and the people that were involved in the process and how the intent was about love."
Elton, 64, believes having a child has been an "incredible" experience, especially as he never thought he would see his family grow.
The `Rocket` Man` singer feels as though he is at a stage in his life where he has so much to look forward to.
In a joint interview with Attitude magazine, he said: "We have had the most incredible year with him. I can`t tell you how brilliant this year has been and how much love he`s brought us and how much we`re getting. We thought the civil partnership brought us together, but having a child has been magnificent and I never thought I would have a kid.
"I don`t feel 65, which I will be next year. Now, having a kid, there`s so much more to do. There`s so much more I want to see happen before I die."