Sex scenes in novels.

Does your novel contain SEX scenes?
Mine does, and I had a-lot of fun writing them.
I have head from many others that writing a sex scene can be a harrowing experience, in fact one blogger that I popped in to read likened the experience to torture! (well that's another genre for me!! ;-)
For me a nice glass of red next to the computer is a great way to get started, ahem, putting the right mood in to play perhaps?
Anyway, one of the things I hate when reading is the overuse of swearing. It is appropriate in some contexts of course, but, I really hate the overuse of 'cock' or 'cunt' or 'fucking'
Another peeve is the blunt use of correct anatomical wording. I mean who wants to hear 'penis' or 'Vagina' as a description of a hot and heavy session in the sack? Equally, I am sooo over the use of pussy (well it's ok the first ten times, but after that..) or cock as a descriptive.
I want to read and I take great care to write about the sensations and the feelings (if there are any involved)
Sex is (in my humble opinion) the culmination of CHEMISTRY.
There can be romantic chemistry or the absolute and unswerving primal chemistry, and many others too of course.
So, writing a sex scene...start with the chemistry, what the characters are feeling emotionally, and what they are feeling physically, don't just dive in to the "his cock hardened" "her pussy was dripping" sort of thing, talk about the arousal, the heat rising on his skin, the hairs that stand up on the skin, that all encompassing electric churning in the stomach, the quickening of the pulse, the heady erotic delight of being touched the right way (or the wrong way!) and the euphoric delight when the mind is overtaken by the succulent sensations of the body. If there is love involved, elaborate on that too. Sometimes, with the right person, a merging of bodies, minds and souls can be the single most perfect moment in two peoples lives...tell your readers about the experience!
Think about the burning arousal, the teasing anticipation, the overwhelming, needy urges that drive two (or more) people together. Your readers need to feel the passion, the love, the drive and the desire of your characters.
So in conclusion, there is no need to write like a porn producer (unless you are one!) nor is there any need to write clinically like you are going for a medical degree, take the time to write your sex scene and fill it with anticipation, lust, desire and of course, the actual event too!