Simon Cowell is wary of having children with his fiancee Mezhgan Hussainy because he would feel too old to play with them.
The American Idol judge proposed to the make-up artist earlier this year (10), and the couple is currently planning its wedding.
But Cowell, 50, admits that the thought of becoming a father troubles him because of his age.
In a candid chat with Oprah Winfrey, he admits, "I worry about that (having children) because of my age. When I was younger, my dad used to play soccer and games with me and I worry - I worry that if I was 70..."
The full interview is set to air in the U.S. on Thursday (20May10).