Two blue shoes

Once upon a time, in the summery, breezy, sun-spangled metropolis, two blue shoes sat perched on the low stone wall of a large stone house. These were not just any blue shoes; they were little blue flip-flops, adorned with sparkly blue stones that glinted in the morning light.

Some mornings, they looked like this (image two blue flip flops pointing in one direction).

Other mornings, they looked like this (image two blue flip flops pointing in opposite directions).

What do these two blue shoes do during the night?

Maybe the Dickinsonian oracle can provide some insight:

The Devil - had he fidelity
Would be the best friend -
Because he has the ability -
But Devils cannot mend -
Perfidy is the virtue
That would be he resign
The Devil - without question
Were thoroughly divine.
(E. Dickinson, 1510)

Stayed tuned for further installations of what is now called "The Two Perfidious Flip Flops."