Former Olympic champion Tessa Sanderson has said it never occurs to her that her adopted twins are not her biological children.
Speaking about the adoption for the first time, the javelin gold medallist, 60, said: "They are our world. I wouldn't swap it for anything. I'd say to anyone who's thinking of adoption, don't be put off. It's not always easy but keep going, it's hugely satisfying."
Tessa and her husband, fellow Olympian Densign White, 54, adopted Cassius and Ruby May, three, when they were four months old.
She told Hello!: "It never even occurs to me they are not our biological children - they are absolutely ours."
The couple volunteered as foster carers after struggling with fertility issues, which is how they met the premature twins.
Tessa said: "I was elated - it was like winning a gold medal. Densign picked Cassius up and he fitted in his left arm. There was an immediate bond. I was nervous - they were very small. But I also felt great as I thought, 'This is what I wanted. This is our family now'.
"We'd been through the different (approval) stages, we had a good home and we would show everyone - ourselves included - that we could do this, that the kids would be happy."
Tessa is a six-time Olympian and three-time Commonwealth gold medallist and has been awarded the CBE for her services to sport.
The couple officially adopted the twins in July 2013 and White said there was never an issue with the couple's ages.
He said: "The social workers knew how fit we were, it had come up during the fostering process. We had proved we had the energy, time and commitment to do the job.
"The (fostering) agency was just happy the kids had ended up in a good place. (It felt like) they were ours after a few weeks. They weren't going anywhere."
Read the full article in Hello!, out now.