This is interesting that you have managed to get two 16's in a room?
Currently have a big family cruise booked next year (about 15 of us, due to a birthday)
My Son and his girlfriend are to occupy a room, at the time they will be both late 17. And yes we had to fudge the booking with p&o, so that my wife is in a room with the girlfriend and me with my son. there was no other way to book it