Kevin Costner successfully managed to make a marriage proposal to wife Christine Baumgartner; thanks to his teenage daughter Lily.

The actor, who tied the knot with Baumgartner in September last year, admits he had no idea about how he was going to pose the question to his then-girlfriend until Lily, 18, stepped in with her idea.

"I told Lily I was gonna ask her and she thought that was really great, which has been great how the kids have received her. When I told her I was gonna do it and she started asking me, 'Well, did you get the flowers?' I said, 'No.' 'Did you get the candles?' 'No.'I hadn't really thought this through completely and that's what's been great about how they received us. So Lily told me exactly what to do and I went and did it. I was directed", Contactmusic.com quoted him as saying.