Riptide Publishing is usually not open to unsolicited subs, but for one week:
[we're] celebrating our second anniversary this October. We’re also celebrating the recent hire of Sarah Frantz, our newest acquisitions editor. To welcome Sarah and say “Thank you!” to the readers and authors who’ve made these milestones possible, we’re holding our first-ever totally open call this October.
[...] So send us your gay shifters, your lesbian law enforcement officers, your trans* school teachers, your queer faeries, your bi space pilots. Whatever you have to offer, we'd love to see it!
- Heat Levels: Any
- Ending: HEA (happily-ever-after) or HFN (happily-for-now) for romance. Any for erotica.
- Orientation: Any
They're looking for fiction from 10,000 to 120,000 words.
I only stumbled on this so there's not much notice to write new stuff, but if you have a theme-appropriate piece lying around, or a novel/novella ready to submit, have a look.
More details here: http://www.riptidepublishing.com/call-for-submissions