My idea to facilitate this would be the use of a new % that players could put into things. I will try and put together an explanation that I hope gets what I mean across.
For a pair of arms, the nakeds may look like this.
Left arm naked : %N's %arms very pretty
John's 'left arm is' very pretty
Right arm naked : %N's %arms are very pretty
John's 'right arm is' very pretty
When a character has both arms with the same description they combine to be
John's 'arms are' very pretty
John's 'left and right arms are' very pretty
When either arm is severed, changed to make them unique from one another they revert back to being two separate nakeds. Still thinking upon how injury placement would look, likely just suffixed onto the end of the combined naked.
The same thing could be used for %eyes %hands %calves etc for anything that has naked pairings.
This could also be used to solve to potentially solve and update bio-mod application and design when it comes to making matched pairs as currently there are issues when bio-mods are applied to a single naked off a pair of nakeds. For example, setting left ear to denote both ears, which when it comes to severing could be confusing.
I hope this makes some sort of sense, please critism, comment everything welcomed.