The Teneo Duo are a pair of of brightly coloured and textured kegel exercisers. The Teneo Duo come in some fabulous colour choices, including orange, green, turquoise, purple, as well as various pinks and black. I kinda want one in every colour! When used regularly, they’re supposed to improve vaginal muscle tone and make orgasms better/stronger.

The Duo come in the usual Fun Factory packaging, which I like. It’s cute, I love the magnetic closure, and is fairly discreet. The cardboard is sturdy, and while it could definitely be used for long term storage, I found it more convenient to keep the Teneo Duo tucked in a cloth bag in my dresser. The packaging included a sample of Toyfluid, Fun Factory’s water based lube. (Just a warning, Toyfluid does contain glycerin, so be careful using it if you have sensitivities.)

The length of the two balls together is 4 1/2 inches, with the tail taking the total length to 7 1/2 inches. They measure 1 1/2 inches in diameter, so if you’re not used to larger toys, these might be a tight fit. There’s small weighted beads inside, that you can feel when you roll the toy in your hands, or when they’re inside you!

They have an interesting texture to them…it’s criss-crossed raised bands that I imagine are there for your vaginal muscles to get a better grip on. However, this texture can make it a bit of a pain in the arse to clean this toy thoroughly. Come and lube like to hide in the little creases, and I usually end up having to scrub them with an old toothbrush to get them entirely clean. To sterilize your toy, you can use antibacterial soap and water, a 10% bleach solution, or even boil these, as they’re made of silicone.

In use, the Duo are pretty awesome. For me, unless I am turned on beforehand, it is a bit tight to get both balls in. Lube helps! Just make sure to use a water based lube, as silicone or oil may damage your toy. Also, I found that if I use too much lube, it makes it harder to keep the Duo in. There’s a notch on top of the ball closest to the tail to help with insertion (yay ergonomic design!), and it does make things a bit easier. For me, the best positions for getting them in was to either be lying flat on my back, or to be standing with on leg up and resting on the side of the tub. To take them out, make sure you have relaxed your muscles as much as possible, or try ‘pushing’ them out as you pull on the retrieval cord. I learned the hard way that the cord will snap if you are still clenching around the toy when you try to remove it. (It was a sad day for me. Boo.)

Having these inside me was definitely arousing, and I was hyper-aware of them for about the first half hour, but soon relaxed and stopped noticing as much unless I did something that would set the small balls inside moving. (such as running down some stairs or bouncing.) Then I would go back to being very aware of them for a time before relaxing again. This may be because I am used to using a menstrual cup, or just because my brain decided that I didn't need to deal with that much stimulation for an extended period and decided to ignore it. I also produce a lot of extra lubrication while I had the Duo inside me, to the point that wearing a pantyliner was a good idea if I didn't feel like dealing with damp underwear all day.

I’ve been using the Duo for about a month now, and while I haven’t noticed my orgasms getting any stronger (which may be a good thing, to be honest. I occasionally pass out for a few seconds if they’re strong enough already!), I’ve definitely noticed that my body will clench down harder on toys if I’m using them to thrust as I come. I’ll have to see if I can get some feedback from my Master the next time he comes to town. For purely scientific purposes, that is. *grin*

I'm still using these on a semi-regular basis. While my partner doesn't think that they are making a marked difference strength wise in the way my pussy clenches around him, he still enjoys that I have been playing with these for a different reason. The Smartballs made me more aware of new and different muscle groups, I find it's easier to control my muscles and can isolate various ones while doing kegels with him inside. AWESOME.