Anna Paquin & Stephen Moyer Engaged!

Get out some bottles of Tru-Blood and prepare for a toast: Anna Paquin and her on-screen and off-screen love Stephen Moyer are engaged to be married, Anna's rep confirms to OK!.

"She has the biggest ring!" an insider close to Anna tells OK! of Stephen's proposal to his True Blood co-star. "She's so, SO happy!"

Congratulations to the happy couple!