No. It's about corrupting the family and of course the cameras ("big brother").
Eric wasn't there in the beginning. He was added at some point because some annoyingly loud people demanded NTR. But his content was always kinda weak. Most story arcs didn't include him at all and once he was removed from the house (on two paths) he didn't have any influence on anything of course. But even if you kept him around on the third path, he would not take part in the upcoming story arcs. He was just there for the sake of it.
That’s factually incorrect. Kira (NPC #4) and Eric (NPC#5) were both considered to be introduced in the demo.
Dark Silver is an early Telegram app enthusiast, his channel is dated to July 2016 when he was developing original Glamour. Later that year he put Glamour on hold and introduced Big Brother.
Here is the entry from 2016, Dec 10, 2.37 PM:
“The fourth character will be Kira, Max's aunt, his mother's younger sister. She will not be introduced immediately and she won't spend every night in the house but she’ll greatly affect family’s life when she is. She is almost without brakes but seems to understand the ultimate boundaries. Or so I hope. Family loves her very much but mother doubts Kira will be positive influence on her kids. You’ll learn about this and more from the game in due time. She plans to sleep in the living room, closer to the refrigerator and the TV (or projector to be precise). Did I mention she is almost without brakes?
I haven't decided yet whether she ‘ll be in demo or not. I'll make either 3 NPCs from the start or 5 (I’ll tell you about Eric another time). At the moment, all 3 NPC’s images are already in the game (both rendered and photoshoped). Max’s various activities still lack a number of images but that’s a separate issue. I'm going to start working with files and localization now. It is better to lay it all down in the initial stage than to redesign the entire system later on. I'll make the first build for testers after that.”
Original text in Russian:
Четвёртым персонажем в игре станет Кира, родная тётя Макса, младшая сестра его мамы. Появится она не сразу, но сильно повлияет на жизнь семьи. Комплексов почти нет, но границы разумного вроде бы представляет. Надеюсь. Вся семья очень её любит и лишь мать сомневается, что Кира может научить её детей чему-то хорошему. Но об этом и многом другом вы узнаете из игры, конечно. Ночевать в доме она будет не каждый день. Спать планирует в гостиной. Поближе к холодильнику и телевизору (а точнее, проектору). Да, я говорил, что она без комплексов?
Пока не решил, будет она в техно-демо или нет. Либо сделаю на старте 3 NPC, либо 5 (об Эрике расскажу в другой раз). На данный момент готовы (отрендерены, обработаны в фотошопе и вставлены в игру) все изображения для 3-х персонажей в игровых локациях. Ещё потребуется ряд изображений для различных действий Макса, но это отдельный вопрос. Сейчас займусь работой с файлами и локализацией. Лучше заложить её на начальном этапе, чем потом перекраивать всю систему. После этого сделаю первый билд для тестеров, а там посмотрим.
Btw, I remember back in the original Big Brother thread there was a link to Literotica story where MC was jealous of Mom's boyfriend, Eric… Sadly, I didn’t preserve that link and wasn't able to find it ever since. That short story (which I vaguely remember ended in a bisex trio or …worse) remarkably resembled Big Brother’s basic plot.
I still have that demo on my old NB but I’m too lazy to check out if Eric was there. Kira, obviously, was not, but they both were envisioned as major plot devices to move story forward.
In short: Eric was there from the very beginning.