You'll laugh, but Anna stops Alex, when he tries to undress in front of other tenants.
Emma said she would not undress and walk around in his underwear in front of the other guys in the apartment. She scolded Peter for what he goes in front of the other girls in tight shorts and his cock strongly bulges out. Their friends are not willing to do it, too.
They take turns getting fucked in the living room in front of a free camera. At the same time, they constantly monitor whether the door is closed and react to every rustle in the hall, for fear that someone will enter in the living room at the time when they are naked.
Alex spoke to them about this at the meeting and only Peter said that he was ready for more.
I'm afraid that you will not see in the near future not only sex two couples in one room, but also strip poker as well.
At the meeting, they said that them need specific instructions on what to do. They do what them says Anna (eg sex in the living room by turns in order to attract new subscribers). And they constantly repeat that it is their job. So we can not talk about the natural behavior of tenants.