They’re one of Hollywood’s most prominent couples, and until now it looked like bliss all the way for Demi Moore (47) and Ashton Kutcher (32). But recently, Star Magazine said an eyewitness told them she saw Ashton “sucking face” with an unidentified blonde in an LA restaurant bathroom. Ashton’s been quick to deny the allegation. He tweeted: I think Star magazine calling me a ‘cheater’ qualifies as defamation of character. I hope my lawyer agrees.” PHOTO CREDIT: EONLINE