Enrique Iglesias has a shock in store for girlfriend Anna Kournikova - he never wants to marry her and doesn't want children for at least another eight years. The Spanish singer and the Russian former tennis player have been dating for five years - but 32-year-old Iglesias has no plans to offer her any formal commitment. He says, "I honestly don't believe you need to be married and, at this point, I don't think it would make a difference. In fact, the only difference is going to be a piece of paper. As a couple, you go through your ups and downs, but it has been fine without marriage. And I think it can also save you a lot of problems in the future. "I'm not ruling it out one day. It's not that I don't believe in marriage, it's just I don't think I need it now." On starting a family, he adds, "Children change everything. I don't think I'm ready for that yet. Maybe when I turn 40, it will be a good time for kids. I've just turned 32 and I know a lot of people have kids this age. But Anna is only 25."