I've never gotten Iris & Riley pregnant in any of my playthroughs so I'm pretty sure it's not possible.First of all I want to thank Perverteer for one of my all time favorite games that actually had great promise in the beginning and eventually far exceeded my lofty expectations. And while I have not yet played the latest update, at this point, I'll trust you...
Question: Was/is it possible to add Bella's co-worker (Megan? Was that her name?) to your harem? I was on Bella's romance route and avoided her for fear of losing my essential Bella...
Also was/is it possible to get either Riley or Iris pregnant?
Also sex with Megan is only on the Bella dominant path, and even on that path she doesn't come to Belugio, you can't do anything with her on the Bella romance path.