Research really isn't hard to do - the internet is a wonderful thing, and assuming that everything you've read in other people's fics is absolutely true is a very bad place to start writing. It's hard enough trying to write a sex scene that's really how without writing one that's positively wince-inducing!

It's not just sex scenes, though, it bugs me every time I read stupid things in people's fics that a ten-minute googling session would have fixed ::sigh::