Dismounting SW with Pillion, Rider First

I have a problem which I have pondered for a short while so I wonder if anybody knows of a method of me dismounting my SW whilst leaving my pillion onboard?

My partner has left-side mobility problems following a stroke and she wants to get back on the bike. So far she can get on the SW before me by sitting side saddle and then me helping her onto the rider's seat and then, push up onto the pillion seat using the footboards and then the pillion pegs. Problem is...what do we do when we have to dismount the bike in reverse order?

It's a wild one but I just thought I'd put it out there. Thank goodness it's scooter we're dealing with here ey?