I don't even know how to quite get the Idea across, but here I go- one morning I woke up to my cat snuggling into me in bed, the usual, when I noticed the second feline form lying along my side, sharing the tabby colors of my cat; thin dark stripes covering parts of the hair(and it was hair- not fur like my cat but hair like a demi-cat, demi-human that is more in line with an isekai's cat people than anything else(complete with cat ears)); completely nude and distinctly female and cute to boot, but at this point I've just woken up, and am still out of it, groggy at the alarm for the start of my day after staying up late planning out a new D&D session for a new group with some friends- some new, some old- but still alltogether small group of four(including myself) much smaller than most like to have for a game of D&D, but it's fun anyway, even if we usually don't get very far into the game before getting derailed or someone doesn't show for the next game, anyway, So there I am... laying there, my alarm going off on my phone, this cute 'cat' cuddling with me and my cat, and I just lay there, staring at her, until she yawns, grumbles something about a lousy hooman and alarms, before shuffling about on the bed and just grumbling and mumbling in her sleep, meanwhile my cat meows at me to turn the alarm off and stop being a tense 'hooman', at which point I fainted at the information overload coupled with the overwhelming confusion.
-Written in the book on the perspective of life without 'Living' relationships, in the words of an anonymous interviewee.

"What do mean?, it's already recording? oh... right hurry up and focus on the topic." shuffling of papers "Hmk hmm... Today we are covering a recent trend started by more eccentric people to 'tame' animals to the point of an R.A. forming, for those not in the know on the abbreviation R.A. in this instance stands for relationship avatar, yes this way of calling them is different to the past names they were called by- what? don't get lost in a tangent? oh! right, sorry, anyway the idea of taming something in this manner is... deceptive, as it requires a solid understanding of mindsets, the nature of R.A.s and what distinctive features all R.A.s have that allow them to be differentiated, like, who knew that, when an R.A. exists between someone and a pet the degree that they resemble the animal matters!?- Anyway it's gotten to the point that research has focused more on the nature of their existence, leaving the details of the differences and the meaning behind them to psychologists, and having most of that be general knowledge- though like most general knowledge it gets lost in the sea of the internet; anyway some Mad Lad found that 'general information' to actually get a cougar cat girl partner- romantic partner at that, using some of the information the ginger found out about, from one of his viewers no less, and that started the trend, and the scientists have gotten together with some doctors to see if any animal traits could be passed on- of if any of these relationships could get children normally anyway. In other news..."
-2014 Channel 69 news broadcast(the guy got fired shortly there after, shame too- he was a recent hire.)

"Are you sure?" Muffled response, followed by distant screams "Well, if you say so... but.. are you really sure it will be fine to sneak into this museum, for an unknown artifact, that is supposedly something that has droven many insane over it's many and varied supposed uses?" motions to hurry up- before visibly taking a few deep breaths and 'mixing/fusing' with the R.A. that accompanies the two- "all right... but you better not leave me stranded in time or some shenanigans like that..."
-The start of a Legendary heist... with the big M

AN: Hi, got inspiration for this so make something with this idea if you are interested. By the way, I will likely not be updating this very fast as I want to see what others might make with the idea. (For authors; in my mind the avatar of any given relationship is only present when the parts of a relationship are both/all present, and can have some unique interactions with the individuals that make up the relationship(this is just how I'm going to write it; take it whatever path you want))