You can read it via links and the discussion of rape-porn it provokes on Abigail Nussbaum's blog, Asking the Wrong Questions, the entry titled, "From the Horse's Mouth."
Some may consider this a smoking gun, quote:
[ " The weirdest part was when you have one of the exec producers leaning over your shoulder, going, "You can go full frontal, you know. This is television, you can do whatever you want! And do it! I urge you to do it!" So I was like, "Okay, well, you're the boss."
This particular exec took me to one side and said, "Look, I represent the pervert side of the audience, okay? Everybody else is the serious drama side. I represent the perv side of the audience, and I'm saying I want full frontal nudity in this scene." So you go ahead and do it.
(The original quote is in a podcast. Here are two text reports, both of which seem quite cheerful about HBO courting the pervert demographic.) " ]