Is a body wrap session for me?

okay im a nit chubby and out of shape and i dont like the little pudge that sticks out when im dressed up. me and my fiance are going to get professional pictures done in about a week or so and i want to look my best. i heard about this body wrap thing that takes off inches instantly, but i also heard that it is temperary some said about 12 hours or so. im just wondering. eperience is welcome knowledge as well. so are any other ideas. thanks in advance.