I like the advice about slowly peeling the onion, regarding sex between you and her. Start talking about more and more fantasies over weeks and months. Pay real attention and listen when she is sharing too.
I've had mixed results in my past telling women. I've had good luck telling FWB's. 4 of them were interested, but for 2 of them it would have had to been in a BDSM scene. The first two were just very wild and I was quite a catch for them. I was worried they might do too much just to impress me. So, I didn't introduce them to it in real life.
I told an ex while we were starting to talk and maybe date again, after telling about an interest in vaginal fisting. She told me that she read stories, etc... and was kind of intruiged, but she actually quit talking to me after that and I was devastated.
If you know her past fairly well and that she was not abused, and if she does like some other naughty stuff, I'd mention a fascination with incest stories and possibly porn first. If she dislikes it, you can roll with how the porn is fake anyway. You can also talk about the cousin porn, step mother, etc..... which more people seem to accept.
If she says that incest stories are hot, then you have a better chance that she may find zoo stories to be hot.
Speaking of stories, you can get some of Nancy Friday's books that are collections of women's fantasies. I think at least 2 of the books has zoo stories in it. There's even a zoo category in one of the books.
Last, fantasy dildos can be an ice breaker, but there's at least 50% of women that like those dildos don't like zoo fantasies. To me, half of them did in an online community I was in, but I probably noticed things that clued me in, slightly. So, it wasn't an ideally random sampling.
It is so liberated attitude, and good advice.
