has found some (monogamous)
of her own.
The 32-year-old actress said yes to actor
, 34, when he popped the question earlier in December. E! News
that Goodwin's future hubby even designed the engagement ring himself, though a picture of the rock has yet to be tracked down.
The duo was introduced by mutual friends two years ago and plan to make it official next fall. They
People, "We couldn't be happier than to celebrate our engagement over the holidays with our families."
Goodwin plays Margene, the third and youngest wife to Bill Paxton's character on HBO's "Big Love." She also recently appeared in the big-screen "Ramona and Beezus."
Kern is best known for his work on
and "Cabin Fever."
Congrats to the happy couple!