The Sex Actually Isn't All That Hardcore or Scandalizing
The sex isn't all that shocking. There, I said it. Most of it is pretty PG-13. There are some moments that raised my eyebrows, sure, but even in the scene where Anastasia really commits to Christian's world, he teases her with a peacock feather and some light whipping.
When Anastasia asks for the absolute worst, I was immediately thinking he'd hang her up, blindfold her, and bring out the big guns. I wasn't expecting him to bend her over a table and hit her six times with a belt. I'm not a sadist by any means, but I was thinking, "Is that really the worst it gets?"