Ed Westwick has reportedly come under severe fire from Gossip Girl's television bosses for gaining weight, because they've had to buy an entire new wardrobe to accommodate his fatter waistline.The sexy actor, who plays Chuck Bass on the show, has been living large since moving to New York City to film the series.And the shows stylists are urging producers to intervene, reports the New York Daily News. An on-set source says, "Ed has been gaining a lot of weight -- not just around the waist, but through the whole body. First, the costume department had to buy him new, bigger pants. Then, his shirts and jackets got way too snug. The costumers even requested that producers talk to Ed -- they don't want Chuck to be fat!"