Nope. But then, I don't really like reading about sex unless there's something interesting going on (banter, for example). I just find reading about sex really boring, and even the well-written stuff doesn't intrigue me. It's like the author expects me to care about the touch here, the touch there, the moaning and the sensations but I don't. Then again, I tend to read books for characterization and witty narration, so unless the sex scene is cute and/or quirky, I'll just skim it. But that's not enthralling or titillating.

As another commenter said, there's something about the terminology, too. I tend to get caught up on the words authors use, and that usually has me cringing.