There are lots of ways to write erotic scenes, but through reading and trying things out, I’ve learned that most of the time it’s best not to bother naming certain body parts unless you’re writing something you intend to give people a laugh instead of making them horny.
You don’t need to say he put his love wand into her dripping beaver. It’s better to say something like:
She was wet and moaned softly as he entered her.
Less is often more. Spark your reader’s senses and let them use their imagination as undoubtedly they either have a partner or someone they’re interested in and it gives them the option of fantasizing.
And if you’re not particularly sexual yourself, have friends read it to let you know if you’ve made them hot under the collar.
That’s all I have time for today.
P.S. I’m swinging my sword about tomorrow around 2PM in Ottawa at the Japanese Embassy if you want to see me do my martial art.