Thanks for looking into it! I see it now, and I see what happened. These are just the kind of sets where they first shoot the girls just stripping in posing in location A, then move to location B and have them strip and do the action begins. I guess it was so obvious to me, I didn't expect any continuation from the point they get naked to the point where the shooting in the new location begins...
I can swap thumbs like you suggested, but that would break the continuity of the location
A bit confused as which is preferable.