I'm trying to figure out how possible this is and how well it would work for others. I work with a spirit, we met about two years ago at a local nature reserve while a couple friends of mine and I were there for full moon workings. She was curious about the piece of quartz I had with me from a different forest, right behind my childhood home. At the time she was kind of fuzzy and unformed, as we've worked together she's gotten stronger and more solidly formed. There was a short period during her formation that I felt drained by the energy she was using, but we worked out a way to moderate that until I could set up a place to give her offerings.
The theory that the friends I'd been there with and I have developed regarding her is that she'd more or less been a ride along, a sort of low level energy parasite, at the start but then through interacting with her and giving her attention she formed up and became something more, formed either an ego of her own or strengthened the one that was there for her to have been curious. Essentially the theory is that I attracted one of these parasites, because I was really bad at shielding at the time, and then more or less built a tulpa-like shell around her with her help.
As of right now, she doesn't use me as a direct energy source unless I offer it and she seems to be self directed enough to leave me for periods of time without it harming or effecting either of us seriously. I've had one of the friends I'd been with then attempt to build a similar sort of constructed familiar and he's had success in it though he's more or less trying to prove the theory, so the results can't be taken as proof that it would work every time.
I was hoping to find out if anyone else had done something like this or if anyone would be willing to give it a go to see if it works removed from my group of folks.