Matthew McConaughey got engaged to Camila Alves over Christmas.

'The Lincoln Lawyer' actor proposed to the Brazilian model and TV star on Christmas day (25.12.11) and celebrated her accepting by posting a picture of them kissing together on his twitter account.

He wrote: "Just asked camila to marry me, #MerryChristmas (sic)."

Matthew, 42, and Camila, 29, have been together for five years, and have two children together, son Levi, three and daughter, Vida, 23 months.

The actor has previously explained how he wanted Camila to feel secure in their relationship as soon as it became serious by buying new home for them, which she could add her personal touches to.

He said: "Before this, I had a super home in the Hollywood Hills that I did by myself - landscaping, detailing pretty much everything. But that house was mine. And yeah, we coulda gone in there right away. Camila would have said, 'Fine, don't change a thing.' But I thought, I found the woman I wanna do it with, the woman I wanna make a family with, hopefully live our life out together.

"She needs to have 50 per cent of that. I mean, it's a lot easier for me to be at 100 percent. I'd always been 100 per cent. It's braver for me at 50 per cent."