The gay singer - whose two-year-old twin sons Matteo and Valentino were born via a surrogate mother - always wanted to have children and has learned a lot from his kids - including the aspects of fatherhood which he isn`t keen on.
He explained: "I`ve always wanted to be a father. I knew it was something I wanted in my life. One day, I typed `surrogacy` into the computer and started researching. Now I have twin boys who are the loves of my life.
"Every decision I make is based on my children. They teach me different things every day, such as the beauty in simplicity. But I do hate changing dirty nappies; it`s not fun at all."
Ricky, 39, has also learned a great deal of life lessons from fatherhood, particularly about becoming more selfless.
He added to Australia`s Daily Telegraph newspaper: "Being a father, you come to know yourself. You have no choice but to become less selfish as it`s not about you anymore. But you also have to feel good about yourself in order to set a good example. Fatherhood has made me work on myself."