You have decided to marry a Russian lady but not sure about disproportion in age? 5-15 years difference is just normal. You have a chance to meet a lady who would be 8, 10, 12, 12 and even 18 years younger than you. Many western men are astonished at receiving letters from attractive professional women (doctors, analysts, book-keepers) 10-15 years younger than they are. In the US this age difference is unreal. In your search for a Russian lady, it is possible. One of the causes is that women in Eastern Europe grow wise at a younger age, and having a relationship with a foreigner of their age is like having affair with a teenager.