I like to write. I like to read, too, but as I've mentioned before, bad writing just stops me in my tracks. It doesn't matter how wonderful an imagination an author might have if I'm getting stuck on the badly punctuated dialogue. It's especially bad for me, since dialogue is so important to my arousal. If you're trying to turn people on, you need to also pay attention to your mechanics and form, not just content. Good form isn't just for academics, you know.
So, with that, I thought I would share rules for punctuating dialogue! I'm going with American rules here, no offense intended to Brits, who have slightly different rules.
"Please please fuck me now," she begged him, unable to stand the teasing any longer.
2. Periods and commas go inside the quotation marks; other punctuation like semicolons, question marks, and exclamation points goes outside unless it is part of the the quote, as in this example:
"Get over here and suck my cock," he said dangerously. "Or would you rather I flog you?" he asked, a glint of amusement in his eye.
The next example is not terribly common, I just include it for completeness. The question mark goes outside the quotation marks because it is not part of the quote:
Did he really just say, "You should try the biggest butt plug"?
The sentence ends with only punctuation mark: the question mark. Do not use double punctuation marks, just keep the stronger punctuation. Question marks and exclamation points are stronger than periods and commas.
3. When a tag line (speaker identification) interrupts a sentence, it should be set off by commas. The first letter of the second half of the sentence is in lower case - you're just continuing the sentence, not starting a new one.
"So," he whispered into my ear, "what shall I do with a horny little slut like you?"4. For a quotation within a quotation, use single quotes, though I don't think this is terribly common in erotica:
"Have you read 'Deep Throat Made Easy' yet?" he asked her offhandedly.5. If a quotation is more than one paragraph long, don't use end quotes at the close of the first paragraph. Use them only when a character is done speaking.
If you care about your writing, you'll care about this. If you're just spewing your fantasies forth with no regard for anyone who might be reading it, then there's nothing I can say to convince you otherwise, and I wish you well anyway.
Happy writing!