You didn't miss much. Just a couple nude renders and a chance to grab some dead boob.Edit: forgot to mention that you should toggle on the adult content from the menu options, since by default it's toggled off. I initially thought that the game would ask me about it at some point, so i basically finished it with the adult content toggled off
I went back and forth about defaulting that option on/off and figured it would be the safer route for all the puritans out there that don't want to see that content. But I realize now that the initial splash screen at the start of the game was probably a little misleading saying that it can be disabled from the preferences menu. I think most people reading that would assume it's on by default.