A person's sexuality should never be a problem as long as it doesn't negatively impact others. If getting turned on while dressed was an issue, what would a person do who dresses most of the time? Never get turned on? For some it is because they are dressed. For some it is the process that actually turns them on. And for others, they just get turned on and happen to be dressed. I would say, don't over analyze it and enjoy it while it happens. As some say, it can wane as you age.