One night, while sitting with Boyfriend and a friend of ours, we got onto the topic of ben-wa balls. Our friend talked of her set of ben-wa balls and asked if I had ever tried them. The answer was no, and she recommended them. I set about looking for a good set of ben-wa balls. I wanted something that would be easy to clean and keep track of. This lead me to the Tenuo Duo, by Fun Factory.

They arrived in a small silver and red box, with a magnetic flip-open cover that spoke of it's features in a multitude of languages. I opened it up and pulled the contents out to have a gander at. Inside was an instruction booklet, another little booklet detailing other toys in Fun Factory's line-up, a little sampler of water-based Toy Fluid (Fun Factory's own lube), and a pink and white set of the Tenuo Duo.

I was actually surprised with the size of them at first. They are not small, by any means. Each "ball" is about the size of a ping-pong ball, covered in Fun Factory's fine silicone in white and pink. The surface of the Duo is swirled and textured, and linked in the middle by a small strip of silicone. The toy is polished off with a loop several inches long to retrieve the toy with. I shook the toy a little, finding that there are ball-bearing on the inside that rattle as the toy moves. The nest step, naturally, is to shove the thing into my girl-bits.

I went into the bathroom with my water based lube, as silicone lube is a no-no for silicone toys, and dropped my drawers. I applied a couple drops of lube to my vagina, then another couple drops to the end of the toy. I found it far easier to insert the toy with one foot up on the sink. I popped the first ball in, but found a little resistance on the second one. An additional drop of water-based lube on the second ball was just what it needed. I pushed the second one in, which is made easier by the indentation on the end of the toy, designed to help the process along.

Now, it was a little difficult. I'm not small on the inside, I'd peg myself at average, but the balls seemed crowded in there. I had to maneuver them a little bit to sit comfortably behind my pubic bone, but one they were in, I couldn't tell they were there. I then left my domicile to go shopping.

Walking around, I still couldn't feel them. This is not necessarily a bad thing, but I couldn't feel the little ball bearings bounce around inside of the toy. I even jumped up and down a few times, but nope, still can't feel the rocking motion of the toy. I often caught myself clenching around them reflexively, which exercises my pelvic floor, as it was designed. Peeing was an interesting experience. It felt kind of weird to pee, because the balls must have been pushing on my urethra. It felt like I could not completely empty my bladder with them in, and the pee would run down the string. So I would personally recommend removing the Tenuo Duo before using the bathroom.

Washing the Tenuo Duo is a breeze. Simply pull them out (or push them out) and give them a good rinse under water. Some mild soap can give it a really good cleaning, along with a soft toothbrush if you are really worried about getting it clean. They dry nicely and do not pick up much lint, which tends to be a problem for a lot of silicone toys.

After wearing them constantly for a couple weeks, I asked if Boyfriend could feel any difference in terms of tightness. He said both yes and no. Sometimes he couldn't tell the difference, but a couple times I was tight as a Chinese finger-trap. As for me, I found no additional benefits, other than cheeky amusement of walking around with balls in my panties. No stronger orgasms. No sudden new-found squirting abilities. No man-trap between my legs. I just didn't see any change.

I appreciate the Tenuo Duo for it's design because you cannot lose one. They are firmly attached together, and there will never be a day when you are disappointed to find that your set is missing a piece. It's extremely easy to clean and insertion is far from difficult. Yet I have considered investing in a smaller set of ben-wa balls to more effectively exercise my vag-muscles, because I feel that the Tenuo Duo is just a touch too big for me. This toy may be too big for girls on the tighter side.