The advice in this column is spot on. However, not everyone follows it. It is a VERY COMMON occurance for students going through the pipeline to start relationships. IT is also VERY COMMON for those same students to due stupid stuff and get married at the drop of a hat, move into base housing, have a kid so one of them can get that hardship discharge(usually the female), and have things fall apart in the end. Whatever you do, do be one of the statistics.
As far as out on the ship, it is absolutely forbidden to engage in any kind of "physical relations" while on board the ship. Does it happen? Yes, and more than you would imagine. Do people get caught? Yes and the punishment is pretty severe(We had a guy get 3 days bread and water, of course there were other circumstances). Just remember that not every relationship you start is going to end well so imagine having to work with that very same person for many more years after the end of the relationship. Also consider that the other person could be on your watch team and in fact be put in a position to be your supervisor. I personally wouldn't want to have to deal with that particular situation, so it is best to avoid relationships between sailors.