This is breaching the G part of /gmad/ a bit but I’m reaching the peak of my degeneracy and now want to make a whole lot of porn about an alien species that form breeding pairs and go around finding hosts (occasionally of their own species but mostly others) to deposit and fertilize eggs inside of and use that as a means of diplomacy, incorporating their egghosts into their family unit and creating inter-species or inter-clan family ties in a similar manner to royal families organizing mutually beneficial marriages.
If you think about it that’d be a bit like being ultra-mega-turbocucked but whatever, I’m into it. Maybe they incorporate hosts’ genetic information a little bit like xenomorphs so it’s less cuck.