Its not OK to have a relationship with your 1st cousin????

Some people in royal families were forced to amrry cousins because they had to carry on the royal line with as little variation from the family as possible. Also, some people really do just fall in love with their cousins. If you fall in love with someone, there is really nothing that you can do to stop yourself from having feelings for them. I still think it is disgusting, but those are the only reasons that I can think of that would make anyone do something like that.