I am 100% ok if Cinderella, Sage and Nora are related. But don't ever put the oily manatee to the same sentence with those 3 people especially Sage Morgan Miller
I hope Madame isn't related, but not for the same reason. For me it would be because it would reduce the chance of a threesome with Madame and any of these other 3 to 0 %
imagine possibilities for dialogues during sex with Sage. "you was jokingly saying have thoughts about Tybalt isn't bad? listen this babe"

on other hand there can be wild sex to relieve some anger situation
Well... how angry would Sage be if she finds out you had sex with both Jade and Madame if Madame indeed happens to be related
- Quinn goes to prison by the end of the game (possible ending) 68% of voters say NO (6Y/13N)
- Nick gets back together with the DIKs to bring down Magnar 74% of voters say YES (14Y/5N)
- "The Locked Room" is a nursery 62% of voters say YES (13Y/9N)
- Melanie is Troy's sister 50/50 (10Y/10N)
- The throuple will break up no matter what the player does 68% of voters say NO (6Y/13N)
- Nora is already pregnant 63% of voters say YES (12Y/7N)
- Jade is pregnant with Tremolo's baby (not barren) 67% of voters say NO (7Y/14N)
- Madame Rose is Sage's real mom 89% of voters say NO (2Y/17N)
- Sally is in kahoots with Magnar's plot and is spying on Tremolo 75% of voters say NO (5Y/15N)
- Jill will discover the Bianca cheat path in episode 12 68% of voters say YES (13Y/6N)
My answers would be:
1. Yes (as 1 of her possible endings, although it's imo more likely that she either escapes or gets killed)
2. No (He might want to try to get back, but I don't think the DIKs would let him)
3. Yes
4. Yes
5. No
6. No if the question indicates that she's already pregnant before having sex with MC, yes if you mean after she had sex with MC
7. Yes
8. No
9. Yes
10. Yes