New Story Idea

So I been looking around the site and a new idea just popped in thy brain involving everybody's favorite Sirens. Now I know I have three stories I working on but I think I can squeeze one more in.

Also I have something special planned for Ugh, What Happened Last Night for making you all wait so long.

The Lighting Dust one-shot is still in the planning stages but I think I have an idea where to start. All I need now is some sort of eye catcher.

Diamond Tiara Gets a Job chapter 3 is still in the brainstorming stages so that wont be done for a while.

If I do go ahead and write it, should I rate it T or M. I'm kinda leaning to a M rated story because it does have some raunchy stuff in it.

So what do?