My new boyfriend just found out that the fling he had 2 months before we even met is pregnant. She is convinced it is his baby, and told him that she does not want anything to do with him and does not want anything from him. I'm worried that she will come back in a few years and try to claim back support. Can a letter be drafted, signed, and kept by both parties if they both agree that no child support will ever be paid and he will not be involved in this child's life? if so, what should the letter all include?