Semi-related community plug: writing_sex
I'll just copy the user info, because it explains this community better than I could:
Write sex scenes? Got questions? Read sex scenes? Got answers? Fantastic! This community is for you.I'll be adding it to the user info, so people can find it again. ^_^
If you've ever wondered if you'll get flamed for using the word "cunt", or what the difference really is between oral sex on a cut or uncut penis, this is the place to ask.
If you're sick and tired of reading bad sex scenes and would love to put your expertise to good use, then this is the place to do it.
Join, ask, and answer. There's no such thing as a stupid question here, and answers will vary depending on personal taste.