well , let's say, we visit the Meyo server with Penny and Nova in 0.9. I can totally see a Threesome there with them.
I also belive , since Caribdis so far made sure, that all the actual fist time sex doeas indeed happened in the real life, but once that out of the picture, at some point there gonna be sex inside of Eternum too, its just way to good to not be.
Nova as a Catgirl in Kink paradise Server
, going back to Andromeda, or Ion . He mentioned wanting to do a 0 gravity sex scene too. so I think, once each girl got their individual first time sex with Orion, things will speed up rapidly, becsue we already at halfway point of the story.