TMI, Lady
Grandma’s adore their grandkids, so it makes sense for them to want to learn all they can about them. However, inquiring about the places where they were conceived is never a good idea. What purpose does she serve by knowing that? It’s so personal and private.
We don’t intend to come across as prudes, but if you were to ask us what goes on in the bedroom should stay there. You may inform your friends about certain aspects of it, but only if you are comfortable doing so. We find it hard to comprehend how anyone would be okay talking about such subjects with their in-laws.