Stephen Moyer thinks Anna Paquin's pregnancy adds "more crazy" to his life.

The 42-year-old actor - who has kids Billy, 12, and 10-year-old Lilac from previous relationships - and his 29-year-old wife are expecting a baby together and the True Blood star can't wait to be a dad again.

"I love my kids so much. And I think that the fact that Anna is pregnant just adds more crazy to the bundle of fun," he said.

Anna - who plays telepathic waitress Sookie Stackhouse on True Blood - is enjoying her pregnancy and is not experiencing any ill-effects. However, her expanding baby bump is causing problems for the show's writers because they are trying to conceal her pregnancy.

"So, in the last few episodes, Sookie's holding a big purse in front of her at all times. I actually heard from the costume designer about midway through the season, she went, 'Sookie can't wear a Merlotte's [restaurant] T-shirt anymore.' And I went, 'Well, it's a good thing Sookie isn't really at Merlotte's anymore, she's basically trying to save the world.' So, we'll put her in loose-fitting, save the world outfits," creator Alan Ball explained.

Anna also confirmed that her pregnancy won't be reflected on screen: "At this point, [Sookie] doesn't have a boyfriend on the show."