My son is getting married; my son's dad has been married twice since we divorced. Fortunately, we all get along wonderfully and the upcoming nuptials have everyone ecstatic! Here's the problem - ex-step mom believes she has a place as "step-mom". She plans to purchase a gown - and we presume, she plans on being in the wedding pictures. General concensus is she waived her "step-mom" status when she divorced the groom's dad. How do I gently tell her that she is merely a "guest" at the wedding? We certainly need to do this before she spends the money on an expensive gown and before the actual wedding day. I don't want to hurt or embarass her after the ceremony by telling her she is not needed for pictures. Thoughts and suggestions......please......