I'm a little confused about the sex card thing myself. So far I haven't been terribly far into the Witcher (I really dislike the controls, it seems like they couldn't decide if the game was meant to be controlled as a third-person action game or a top-down RPG... from the looks of things, the second game settled on third-person action, to its benefit)... but I've yet to see Geralt do anything horribly lecherous or objectifying, he seems pretty respectful and only playfully aggressive with any of the women he winds up with.
So yeah, it's like they meant the player to be a peeping Tom living vicariously through Geralt's healthy sex life... which is a little creepy, actually.
So yeah, it's like they meant the player to be a peeping Tom living vicariously through Geralt's healthy sex life... which is a little creepy, actually.