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Flex for Me!

Finally, a silicone double penetration toy! Flex makes it easy to achieve vaginal and anal stimulation at the same time. I usually use a stationary anal toy, vaginal toy, and clit vibrator all at once. Flex improves on that by allowing me to have thrusting both anally and vaginally, while still leaving my other hand free for my clit. Unfortunately, Flex's anal probe is half as thick as my usual anal toys, so even with the added thrusting, I don't get as much anal stimulation as I'd like.
Easier to thrust than separate toys, silicone, comes with bullet.
Anal probe is a bit small, does not provide g-spot stimulation for me.
Rating by reviewer:
extremely useful review


Flex is a double penetration dildo by Tantus. It is designed for simultaneous vaginal and anal penetration, and to stimulate the same group of muscles from both sides. Flex has the distinction of being the only silicone double penetration toy carried on Eden, and as far as I know, the only one that exists. Flex makes it easy to stimulate multiple areas; it's much easier to thrust with one toy than two, and if you'd like to add clitoral stimulation as well, you'll now have a free hand. You could probably manage to use just the main shaft or just the anal probe, but that would be awkward and you'd be much better off buying separate toys for the times you only want one or the other. Flex comes with a removable bullet, so you can enjoy it with or without vibrations.

Material / Texture

Flex is made from Tantus' 100% ultra-premium platinum silicone. It's non-porous, non-toxic, and phthalate free, with no taste or smell.

The silicone is quite firm. It has a smooth, slightly shiny surface that creates a lot of drag before lube is applied, but becomes very slippery after.

The main shaft has little to no give, and can only be slightly bent. It is totally smooth, with no seams.

True to the name, the anal probe does flex, since it is much thinner. It can be bent completely in half, so it should bend to fit any body, but it is still firm enough that it isn't floppy and can support it's own weight. The anal probe has a beaded texture, which adds stimulation while thrusting.

Flex is available in 2 shades of purple. I have Midnight Purple, which is a shimmery plum colour, with swirls of darker purple.

Design / Shape / Size

The vaginal portion has a semi-realistic design with a phallic shape and a pronounced head, but it doesn't actually look like a penis since there is no detailing (and because it's purple!) The whole toy is 7 1/2" long, but there are 5 1/4" of insertable length before the anal probe prevents going any farther. The shaft is 4 1/2" in circumference, while the head is slightly larger at 4 3/4". It is a pretty average size, and should work well for the majority of users. The larger head could provide some g-spot stimulation to those with easily stimulated g-spots.

The anal probe is a bit on the small side, with 4 1/4" insertable inches and a 2 1/4" circumference, which is about as thick as my thumb. Unlike a lot of beaded anal toys, the circumference stays the same throughout, and the probe doesn't get thicker towards the bottom. The beads are slightly irregular in shape and size, but on average they are about 3/4" long. This would be a good size for those who are new to anal play, or who just prefer to use smaller toys. More advanced users will be able to easily slip this in with no warm up. Since it will be used along with the more filling vaginal portion, it may not feel as small as it usually would. The probe is made up of 6 beads, but only 5 can be inserted. The anal probe naturally lies about 1/2" away from the shaft, but since this portion is so flexible it can be angled to suit anyone's anatomy.

Flex has a wide base, which makes a good handhold, and allows it to be used in a harness (though I can't speak to how well it performs that way.) There is a standard sized bullet hole in the bottom, and unlike any of my other dildos, this one has ridges inside to really lock the bullet into place. Flex does not come with a suction cup, but you can always add this one if you want to use it that way.


Inserting the toy was pretty easy. After in toserting the tip of the vaginal portion I had to use my hand insert the tip of the anal probe, before pushing on the base to insert the full length of both parts.

The vaginal portion is a good size for me, and is large enough to feel filling without stretching.

The anal probe is much narrower than the other anal toys I use, and I would have preferred if it were thicker. The beads do add a nice popping sensation during thrusting, which helps make the probe much more noticeable during use than it would be if it were smooth.

I have a shallow g-spot that is pretty easy to reach, but I wasn't able get any g-spot stimulation from the head. Since my g-spot is only located about an inch inside my vagina, I would have to have the head barely inserted to hit it, and since the anal probe is shorter than the vaginal shaft, it would pop out if I pulled back that far during thrusting. I wish the anal portion was the same length as (or even slightly longer than)the vaginal portion to prevent that from happening. The lack of g-spot stimulation isn't a big deal to me, since I don't think Flex was designed specifically for that, and it does a good job of stimulating the rest of my vagina, but it would be nice to have the option of focusing on that area.

The Flex comes with an N battery powered bullet. It's stamped with the Tantus logo but is extremely similar to the RO-80 mm bullet, and is most likely produced by the same manufacturer and just branded differently. I'd give it 3 vrooms on it's own, but when it's inserted into the Flex, the silicone dampens the vibrations down to a 2. It adds a slight buzz, but I could barely feel the vibrations vaginally, and while they were a little more obvious in the anal portion, they didn't add much to my experience. The opening holds a standard sized bullet, so you can add a more powerful bullet if you have one. My Tango fit perfectly. Make sure to add a little dab of lube before inserting the bullet, or it can be quite difficult to remove.

Care and Maintenance

Flex can be easily washed with antibacterial soap and water. You can sterilize your toy by boiling it for 3 minutes or bleaching it in a 10% bleach solution. It can also be run through the dishwasher on the top rack. The silicone tends to pick up lint, so let it air dry or dry it with a lint free cloth before storing.

Silicone lubes can bond to silicone toys, causing damage. However, according to the Tantus website, since they use platinum grade silicone, there are rarely problems with any lubricant. It is still recommended that you perform a patch test on the bottom of the base, just in case.

Silicone toys can be stored together, along with toys made from plastic, metal or glass, but other soft materials like jelly and TPR should be stored separately.


Flex comes in a plastic box that doesn't have any wording specific to the toy itself, and is probably used to package a number of their dildos. Inside is a molded plastic tray that holds Flex and it's bullet. The plastic is pretty flimsy, and my box started breaking just from opening it, so this won't work for storage and should be recycled. Although there is no specific information on Flex, the package does have some general information on the company and silicone. Care and cleaning instructions are not included on the packaging, but the buyer is directed to the Tantus website for that information. The packaging is not discreet since you can see the toy inside, and even after it's removed the front of the box announces that Tantus makes "THE WORLD'S BEST SOFT TOYS FOR ADULTS."
This product was provided free of charge to the reviewer. This review is in compliance with the FTC guidelines.
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Do you like this review?
  • ILikeShinyThings
    Great review!
  • thisisadeletedaccount
    Thanks for the great review!
  • Tbanda
    Good review!
  • ginainohio
  • panthercat23
  • thesquaredeific
    Thanks for the review.
  • MK434
    Nice review!
    Thank you for the great review!
  • Doublenut
    Thank you.
  • GirlOnGirl
    Great review, thanks!
  • Mr. John
    Mr. John  
    Thank you. It was a nice review.
  • AmethystQueen
    Thank you! Interesting that you found the vibrations softer than others and felt them more in the anal portion when others felt it more in the vaginal part.
Discussion Posts Last Update
More high quality DP vibes and dilos please! 6
Does the Flex DP come with batteries? 14
Do you like DP toys or two seperate toys for DP play? 12
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