Joel Madden has spoken about his relationship with Hilary Duff.

The pair began their relationship when Duff was 16, only revealing it shortly before Duff's 18th birthday, according to Teen Hollywood.

Madden, 26, has stated that he has a good relationship with Duff's parents, but is unsure whether he would let his own child date someone so much older than themselves.

He said: "I wouldn't let it happen. This is the slowest relationship, physically, that I've had. It's grown at the right pace, organically and naturally. I didn't care what the press would say. I cared what my mom would say.

Duff added: "We're on the same level, even though he's so much older."