I'm really glad I didn't give up on this game. At first, the lack of mission guidance and my inexperience with this type of game made me quit several times. This Labor Day, I finally decided to give it a serious try, and I must say it's quite enjoyable once you get into it. Although there aren't many intimate scenes so far (haha), I do want to ask: How do I trigger the Sis Sub Path? I've already completed the part where my sister smokes. Will this affect the path?
Im glad that you didnt give up on the game. There are easy and hard version of the quest help (and a stat tracker), they are set to hard and off to start..
There is more hard content in more recent versions and more content coming in each release.
So the sis npc, sub / dom comes during the first gf quest... what you need to make sure is that your char has a raised dom level and that when given any choices you push for the more dom option.
While the main sis quests dont currently have any sub or dom routes.. you can dom your sis also in the dirty gp quest (in one of the paths).. and more content on this is coming, down the line.
I have dropped an update on the next release on my patron, its open to all members (paid and free) to read