Behaviour observation number 3 -
I came downstairs this morning to find the two of them twisted together. I could see the tail ends and they look like the were twisted all the way to their heads, it was hard to tell as their temporary RUB is slightly opaque and the room was still dim. I snapped a couple of pics from my phone as it was in my pocket, but they really aren't clear.

Two snakes twisted together... Means what I think it does, right? Or at least they're trying.