Space Tango: Science Fiction

They tangoed across the room with a dust rag in one hand and a mop in the other, pausing in the middle for a close embrace, and then moving on with the perfectly timed rhythms of professional dancers. They were professional dancers, of course, but not first and foremost. Nor were they cleaners first. No, what they had chosen to set above all other things in life was being able to live in space. Chronic lower back disc pain would have rendered her unable to dance...eventually, barely able to walk. In space, though there was some gravity in the residential quarters, she would get no worse. And she could still dance. And so they took whatever jobs they could--for he was a man loyal to the woman who had been his partner in dance since they were seventeen and his partner in romance for almost as long--and they danced in space.

Inspiration: "Swedish Wedding March"
Story Potential: Low? High? I am confused by this.
Notes: I love this image, but it's not a good story idea.