In reality, if you think about it, it's not that things are very different from what they were before (even in the old house).
Think about the sex that Lisa or Violette or Lola does, etc.
The sex of these two lasts 5 minutes at most!
I've never seen Sid kiss Em's pussy and I've never seen a 69 of them!
In addition, they always do almost everything hidden from the covers and with Sid that never lowers the pants.
We are probably attracted by the sexual charge of Em but their sex is really very poor, especially when compared to what other couples do.