Charlie Sheen's rep is slamming a new report that claims the actor stormed off on wife Brooke Mueller, who is pregnant with twins. In its latest issue, Star reports the two have been "fighting relentlessly" and that, on Oct. 25, he fled to Las Vegas, partied with Spin City costar Michael Boatman at Prive and got lap dances at the strip club Spearmint Rhino. But his rep tells Usmagazine.com: "Star magazine never lets the facts get in the way of good hatchet job. Had the reporter bothered to check, he or she would have learned that the reason Charlie was in Vegas [Oct. 25] was for a contractual appearance on behalf of Planet Hollywood's Prive. "Charlie was in Vegas only four hours. He arrived and left the same evening," the rep continues, "not on Oct. 28, as Star reports." Star's reporting of his alleged behavior is as inaccurate as the rest of their story." Sheen and Mueller - who wed in May - are fine, his rep says. They recently confirmed that they're expecting twin boys.