In 2009, Demi and Ashton were some of the first celebs to use the then-new form of social media. Aside from complaining about noisy neighbors, on their fourth wedding anniversary Kutcher tweeted, "Happy anniversary @mrskutcher I'm not sure why we keep track of years in relation 2 an infinite love. But tradition wins 2day." He also posted a, um, cheekier message along with this nearly naked shot of Demi, gushing, "Watching my wife steam my suit while wearing a bikini. I love God!"