I have just booked 2 return flights in club world from London to Las Vegas. We are holidaying with another couple who have booked 2 return economy flights on the same plane.

I was chatting with my G/F last night and we agreed it would be nice to let our friends experience CW as they have not flown in business before. We though, that on the outward flight my G/F would be in CW and I would swap seats with her girlfriend. Similarly on the inward, she would swap her seat with my mate.

Would we experience any trouble with this (i.e. the named person not sitting in their allocated seat?). We would not be swapping or moving between during the flight so shouldnt disturb anyone.

Also, on the ground would they allow us to swap entry into the exec lounge?

Thanks