Hum, since this thread is still on the first page I might as well add my idea here I guess instead of making a new thread...
You already have the cbt tag..
But it's sort of a male sub only thing
What about the other one? ;-)
It's amazing what you can do with a females genitals...
Possibly you could just change the name of the cbt tag to genital torture/punishment/something else entirely I can't think of right now..
Oh, and while you're at it..

It wouldn't hurt to have a new look at the story code and make sure that they're all up to date including all the current tags (something it don't) and perhaps remove some of the ones that's gone (I think there's something there that's gone but I might remember wrong)..
Thanks at any rate and good luck :-)
Oh, and keep up the good work ^^