[Please skip to the question at the end if you don't want to read the entire situation.]
I'm planning my honeymoon far in advance because I will purchase Singapore Airlines's Round The World Trip using all of my miles obtained from business travel and credit card spending. My intention is to buy the 180K Economy RTW and the 360K First Class.
Here is the situation. My girlfriend likes to cuddle when we sleep and would prefer doing that in economy to sleeping alone in First Class. Plus, it will be our honeymoon, so we definitely don't want to be separated on the plane. Knowing that SQ first class is a generous apartment that can easily fit 2 people, I don't see a reason why I should buy 2 First Class RTW because she would end up visiting my apartment anyway.
Would it be possible to bring my girlfriend to the First Class apartment from Economy (except during take-off and landing, of course)? All the flights in my RTW itinerary are at least 6 hours. Any suggestions/comments would be much appreciated!