It could be your anatomy. Some women have shorter vaginas than others. Mine was shortened due to removal of my cervix, which makes it nearly impossible for me to find a rabbit vibe that actually fits, among other toys. You can stretch it out gradually, however it is pretty painful and in my experience, does not add actual length as much as it did a bit more girth. And then it was only pre-orgasm...as in seconds prior to orgasming. So, that was a waste of my time and pain tolerance, lol.

I'm pretty OK with this shortness, to be honest I'd love to find an exerciser that would work for me though. Think I'd be best looking at the one-ball type?

I looked at the Emigi, but it seemed like I might encounter the same problem. I went ahead and purchased the shorter Teneo Uno today, (being on sale helped with that decision too) and we'll see how it goes! I'm excited to get it.

Well I just received it. I haven't tried it yet, but in reading the literature, it states that the Uno is "suitable for beginners or for women with a dropped or tilted uterus"... annnd I happen to have a tilted uterus. I wonder if that might have been the problem all along! I will definitely note this in a review. It's great information to have!

ty this something i wanted to know

I was having such a struggle, and I was SO CONFUSED. The Teneo Uno fits well. I wish this was more common knowledge

I am glad that the Teneo Uno worked well for you. The tilted uterus does cause many problems for ladies. I hope that you are able to enjoy this toy, and many more, now that you have found out why you were having such problems.

It actually does answer a lot of questions.

Also, when you are using a two ball system, you don't insert BOTH balls completely. The first ball is lubed and then inserted so that it "pops" into place behind the muscle you would use to hold in a tampon, then the second ball should be in part way. Just enough to hold the vaginal lips open a little. Then the double ball system will work with your PC muscles the best way.

Also, all women experience their vagina lengthening when aroused. This can facilitate using exercise balls, too.