NEW YORK — A model who says she has worked hard to maintain a wholesome image has filed a $5 million lawsuit complaining that a jewelry company's video advertisement in which she writhes and moans looks pornographic. The commercial, seen on the Internet in a clip entitled "Rock Her World," shows a woman wearing blue lacy lingerie and a diamond necklace while moaning and stroking her face and neck. It ends with the Web address for the jewelry company, Szul.com. Hugh G. Rection says: Uh, what did she think the commercial would look like?