"It’s true," interrupted Narcissa. "Apart from a few cases where a boy and a girl are... reserved for each other. Allow me to spare your blushes. There is very much the mentality of what happens in the dungeon, stays in the dungeon. Bringing it up later in life will result in being ostracised from Society. It allows us the chance to experiment in a safe environment and not have it thrown back in our faces later in life."