Excerpt from Supernatural Then and Now Podcast with guest Julie McNiven. At about the 30:30 mark they talked about the sex scene in the Impala that comes up next episode, and Julie had some nice things to say about Jensen:
He was extremely protective and turned the monitor around so I could see [the shot]. He encouraged me to make sure I was comfortable with the shot.... It ended up being fine, and really thanks to Jensen for just being like, "You have a voice. You are the one that makes the choice here." And that was really important.