Twice a month every month since I married my husband, his step father Martin has stayed over. It coincides with my husbands night shifts and Martins job, which brings him over our side of the country. After the first visit, red wine and a soft porn movie on the TV. Myself and Martin have been having such amazingly frantic hard sex together. He's much bigger than my husband and loves to give me what my husband has never done, and that's incredibly strong orgasms through anal sex which I just adore. I know we should stop, but I have too much fun and awsome cum laden sex sessions with Martin, I just can't.