no if you rewatch it, at least 2 or 3 couples were actually trying to have sex, and from what i could see at least 2 even got to doing it until they were interrupted by another couple. its not like they were cuddling, they were actually doing it until someone else came into that room :P
plus there was another couple in living room (redhead from earlier today and her bf) making tons of moves but since there were like 14 other people in the room, nothing serious happened. My point being they were ... reallife cam at its purest sense, geninuely trying ot have sex despite cameras, not because of them and not only because they had to make a show. You dont really see that anymore on rlc, and thats why i actually dont mind them being in rlc and even if i was against a bunch of randoms crashing in for a week im probably gonna miss them once they are gone :)
not to mention there was like 15 people in what... 2 rooms? its really hard for something to happen with so many people around, and yet lots of stuff has actually happened. and its all real. If we compare it barca stuff where we have 3-5 girls and sometimes one guy and nothing ever happens... just try to imagine what would barca look like with one floor, 15 people and 2 rooms only ?