While i can sort of feel the appeal of making a harem for your favourites i dont think its for everyone. What IS for everyone however is an increase in firepower now that Kalysea is a 'sorta' companion - a summon! (btw huge W for the developers, i see this as an absolute win, thank you Nidabutt, Savin, Wsan and everyone who was involved, you guys are awesome!) Perchance we could offer her some more items for her to boost stats? Or imagine if we could buy her a gift like a really fancy attire or commision an item for her. I get that as a druid she is basically self sufficient and doesn't really require anything, but as i stroll through the cities i want my squad to look regal, - as we stroll through any area all eyes should be on us (especially if there is 'public display of affection' content planned somewhere down the line) its a damn shame we can't really invest in gear for our companions and followers (or at least i never saw options outside of buying some cowprint bra for Brienne).
On the note of 'making harem' i also saw simular idea somewhere about Ardia and i personally would be down for it IF there was no brainwashing/chemical addiction kind of thing. It just seems wrong. On one hand, why wouldn't you want your favourites to have an extra good life/time, on the other you are basically stripping other living breathing entitites of a semblance of a normal life. The player has done that on his own volition (even then i didn't particularly like the brainwashing/addiction part - why even bother with a very willing participant, when this can be a turnoff), but forcing that on others just feels scummy.
Again, thank you very much developers for your hard work! <3