How can a parent approach the subject of fertility preservation with their cancer-stricken child?

I think that a parent having to talk to a child who has just been diagnosed with cancer about preserving their fertility is probably one of the hardest discussions that could happen. I remember talking to one mom regarding her young son and asking her if she wanted to have sperm banking done and not even knowing if he had a nocturnal emission at one point. So, although she felt that it was very important to try to preserve his fertility, it turns into the-birds-and-the-bees conversation which is hard for any parent and put cancer on top of that and then why do we have to preserve my fertility and have this conversation. I think it can be very cumbersome and parents can kind of step all over themselves about this. But the best advice that I can give them is just to try to sit down and stumble over all the words and be open and honest with their child about what's going on which also means that they have to be open and honest about their cancer. And sometimes, they're not always on the same page with that. So, it's a conversation that can open a lot of doors, it can open a lot of questions for children and the parent has to be prepared to answer any of those.