8 Signs It's Crazy, Stupid, Hollywood Love

From playing house to co-parenting furbabies, see how committed these star couples are to being head over heels for each other

3. START A FAMILY (WITH DOGS!)

They might not be engaged, but Miley Cyrus and Liam Hemsworth are already co-parents – to a brood of five furbabies, three of which they adopted in 2012. "Just got my first Mothers Day card," she Tweeted on May 13. "Proud mama to Lila, Floyd, Ziggy, Happy, & Mary Jane."