Despite their longstanding romances, these celebrity couples aren't ready to make things official
Camila Alves and Matthew McConaughey
Together since 2007, the couple has two kids together -- but marriage isn't high on their to-do list. "I am for marriage, but 'legal' seems to be the word that doesn't fit the picture when you are talking about love and commitment," McConaughey said in 2010. "It doesn't make me love her any less."
Credit: Jon Kopaloff/FilmMagic