I think it is partially scripted. Producer write a situation and actor follow the guidelines.
This (current 10/2019) is pretty raunchy. One character, David, has had a naked shower
scene, and 3-way with 2 woman, and a sexual romp with another woman all together.
His girlfriend, watching via film) is crushed.
If this is real, I'm having a hard time understanding how anyone could do that knowing that
their partner is potentially watching.