When I installed Morrowind, of course I had to make mods for that, too. Most of them were just outfits, body remodelling and such, some of which may get into the Resources section at some point. But then I found Grumpy's companion template on Emma's site, and adapted it for two, bringing Angelina and Diablita over from Oblivion. Or maybe this is their mothers.
I had a few of the locals at Emma's test it. It works with standard and OpenMW, although the latter has no equivalent of the companion teleport mod I was using in my own game, so they had some issue with that.
More details can be found in the Fake Wiki pages.
Both of the sisters have long enough hair that it needs to be rigged to more than just the head. I had to learn how to do that, and have adapated a few more hairstyles as a separate resource mod.
Diablita's tail originally looked rather uncomfortable ,,,.
... Sot it got moved slightly higher.
The mod is packaged as a BAIN archive, because I use Wrye Bash. That is compatible with other mod managers, but may require some extra work. I will NOT ve re-packaging any of my mods for other managers, especialy not Nexus ones.