When I say main characters, I mean people who are likely to get more than a walk-on role. Michael, Ashley and Patricia all had multiple sex scenes with Anna in Chapter 1. But there many very minor characters who had just one or none, and quite a few who don't have names. Maybe Secondary characters would be a better description ( and it would also include Robert, Paul, Basher and Leslie from the Bar, The Taxman, Jim, Ruby, Ethan, Liam, Diane, Madison and a few others). And then everyone else would be minor characters.
I think the gangbang thing was something I saw on here, being discussed by a few people, a couple of months ago ( or maybe it was Discord... I cant remember exactly). At that time it seemed like a possibility. But now it seems like they're taking Benjamin in a different direction. And this was kind of discussed on Discord at one point. Whether Anna would have a beneficial effect on Benjamin and help him to lead a more ordinary life? Having said that, the guy is an alcoholic, and isn't used to the life that most of us consider to be normal. So I can see him backtracking and ending up back on the streets.
Personally, I'd like to know more about Benjamin's past. He seems like a pretty smart guy, and the way he talks suggests he might even have been some kind of academic maybe? Or maybe he's just spent a lot of time in public libraries. When I was younger, I remember seeing people who were obviously homeless, in the public library during the winter months, because it was dry and warm. But I want to know, how he came to be homeless in the first place, and who he was before that?
I don't think Benjamin got teased. As things stand, Anna is not really attracted to him. She feels sorry for him and maybe that she owes him, because he stood up for her when she was in jail. But that's as far as it goes. The last time she only intended to give Benjamin a hand job, but he took advantage of the situation and she ended up being forced to swallow his cum. So she definitely wasn't teasing him. Now it may be, that that will change, because Anna as we know has a thing for older men. But right now it's more sympathy than anything. And Benjamin is not exactly an older guy stud, like say Alfred is.