I'm a very late convert to 'Outlander' and I'm so addicted! I've skim-read the first couple of books and, while there's a lot to like about them (great universe, nice writing style, interesting characters), my inner feminist/believer in gender equality can't deal with some of the content from the first book... In my humble opinion, Diana Gabaldon has some pretty 'effed up' ideas about romance...
On the other hand, I love the TV show's depiction of Claire and Jamie. I'm not normally a big fan of sex scenes, but, in my opinion, 'Outlander' does them well (it doesn't hurt that I'm bi and both Jamie and Claire are hot!)
However, there's a lot more to the series than sex, and I feel that it's still worth watching 'Outlander'-even if you skip over these scenes.
Despite the slight historical inaccuracy (which the author acknowledges), 'The Devil's Mark' is a particularly good episode. The acting is superb and the (non sexual) chemistry between Claire and Geillis really drives this episode. These events mark another significant milestone in Claire and Jamie's relationship and made me fall deeper in love with the couple.
I'm hoping to visit Scotland in the near future and, even if 'Outlander' is only fiction (😢), I'll be sure to pack some gemstones and a few essential modern day items... 😉