I would expect the forces go both ways. The fuselages have their own forces on the wings and since they are essentially sub-planes I’d imagine the forces could

I would expect the forces go both ways. The fuselages have their own forces on the wings and since they are essentially sub-planes I’d imagine the forces could both strong and un coordinated - eg one trying to go one way while the other tries to go the other way. I’m sure under normal circumstances, computers keep everything aligned, but wondering about stressful situations.