@naga @setsuna Since parasitism was mentioned there is "Patternist Series" (see: https://en.wikipedia.org/wiki/Patternist_series). Also Butler published a lot of short-stories, and about a half of them had either of the requested themes ;)

@jacek @setsuna I hadn't thought about that aspect of the Patternist books, but you're absolutely right.

Also, to be more explicit on Xenogensis, it moves into symbiosis territory for reproduction. (As I recall, it's been a long time since I've read the latter two)

@naga @setsuna Actually I was very keen to know what will people from SF book club say when they read whole Xenogenesis (I got trilogy as a single tome so I read it in a weekend). And yes --- definitely there is more symbiosis than parasitism.

@naga @setsuna

Especially this short story: https://en.wikipedia.org/wiki/Bloodchild_and_Other_Stories#%22Bloodchild%22

@setsuna

1. Also this Scott Card: https://en.wikipedia.org/wiki/Wyrms_(novel) has some veird repoductive cycles;

2. I keep thinking about Dick, let's say there are some "space" beings that influence consciousness in eg. VALIS (it might be a long-shot); Also UBIK has parasites (kinda sorta);

3. Social Parasitism is in every second SF book on soviet block (spoiler: parasites are metaphor for the communist party ;)). Zajdel: https://en.wikipedia.org/wiki/Coming_out_of_the_Shadow

@setsuna

And the last one:

Asimov "The Gods Themselves": https://en.wikipedia.org/wiki/The_Gods_Themselves Weird alien reproductive cycle

@setsuna It turns out that the most interesting part of Diaspora (birth of post-human person) is freely available: http://www.gregegan.net/DIASPORA/01/Orphanogenesis.html