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Review: Vac-U-Lock UR3 Thin Dong (Doc Johnson)

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Review: Vac-U-Lock UR3 Thin Dong (Doc Johnson)




As you may have read in one of my previous reviews (Nasstoys Suction Cup Dildo), me and my girlfriend sometimes enjoy simulating double-penetration with a suction-cup dildo. My girlfriend complained about our previous dildo for a few reasons however: although the size was perfect and it worked fine vaginally, that specific dildo was highly textured and made of a hard material, which was often painful when inserted inside her ass.

In the past few months I've been shopping for an alternative suction-cup dildo, but I had a hard time finding one that matched every of my criteria: it needed to have a suction-cup, it had to be made of a soft material, the girth had to be rather small to thrust inside my girlfriend's ass comfortably. By a fortunate turn of events, I finally stumbled across the Vac-U-Lock UR3 Thin Dong, which happened to be the perfect dildo for what we wanted to perform.

If you're looking for a much similar but thicker dildo, you could also consider the standard UR3 Suction Cup Dildo which Dancing_Doll previously reviewed.

You could also read my previous Nasstoys Dildo Review if you're looking for a few fun ideas about how to use a suction-cup dildo for double-penetration with a partner.

The dildo I ordered doesn't have a suction-cup directly attached to it however. Instead, it is equipped with the Vac-U-Lock system, which is essentially a hole in which you can insert many different accessories. I personally only ordered the suction-cup adapter, but you could also buy different handles, strap-on attachments, and even a fun balloon to bounce on your dildo:





This dildo is also made of UR3, which is a material patented by Doc Johnson. It feels extremely realistic, it is quite malleable, and it is the perfect combination between hard and soft. You could also buy the exact same dildo in jelly rubber (for a lower price) or in silicone (for a higher price), and it is also available in many different shades. I personally purchased the UR3 version for $20 and the suction-cup adapter for $10, which is quite a decent price for a dildo of this quality.


Here are the dimensions:

Length: 7.1"
Insertable Length: 6.25"
Girth: 5" at largest point
Width: 1.6" at largest point


And here's what it looks like compared to my previous Nasstoys dildo:





The Nasstoys dildo is relatively small (6.5" x 4.5"), which is slightly longer but also narrower than my own cock, so the Doc Johnson dildo isn't actually as big as it might seem on that picture. I personally measured the girth at the middle of the shaft and it is exactly 5", which is only slightly larger than an average cock: imagine a cock that's slightly longer/bigger than average without being overly big. For someone that's accustomed to anal sex (ie. with a regular partner), the girth really won't be a challenge for your ass.

You can also notice how much higher it stands: 8" when the suction-cup is attached, which can prove to be quite an advantage to position yourself over the dildo or to indulge in many different double-penetration positions with a partner.

Observe how malleable/pliable it also is. This is also ideal for wild double-penetration sessions: no matter the positions or the movements involved, the dildo will follow your body accordingly and will remain inserted comfortably inside either your pussy or your ass:





Of course, this dildo could also be used for solo-play. Without any attachment inserted in the hole however, the base will be quite soft/supple and the dildo will have a hard time keeping a proper shape. It will also be difficult to handle with your hand:





This can be remediated fairly easily though, by inserting a small bullet vibrator at the back of your dildo. I personally bought the High Intensity Bullet (from Cal Ex), which is 3.25" long and 0.60" wide:





When I ordered this dildo, I thought that my Sensuelle Wireless Bullet would be too big to fit into it (0.80" wide), but it actually does fit. The thing is, the UR3 material is quite extensible and it can thus accommodate a larger bullet, but I doubt that the jelly rubber or silicone versions of this dildo could accommodate a bullet wider than 0.70".

I must say however, the vibrations don't really spread all that well over the dildo (especially at the tip): my girlfriend could slightly feel them at the base when the dildo was fully inserted inside her pussy, but you might as well use a proper vibrator if you intend to play with vibrations.

That said, you still might want to invest in a cheap bullet ($5-10) just to render the dildo more rigid for solo-play. As you can see, when a bullet is inserted the dildo is perfectly stiff and ready to fuck you nicely:





Overall for me and my girlfriend, this is the perfect dildo to indulge into double-penetration: the size is perfect (both vaginally and anally), it's very easy to manipulate, and it's extremely soft and malleable. The UR3 material is quite amazing, my girlfriend says that this dildo feels fantastic inside her ass, even better than her silicone dildo. And the suction-cup is also very strong: since it is made of plastic rather than being made of the same material as the dildo, the hold is much stronger than my previous Nasstoys dildo (which was already more than decent).

I highly recommend this dildo for fun couple-play, it honestly is the perfect toy to simulate double-penetration with a partner!
Great review! That looks like a really good one - UR3 is the best and I like how flexible it is.
Here's a fun setup which I also experimented with since my last Nasstoys Dildo Review.

First, place your suction-cup dildo on a flat piece of plastic. Plastic covers work great for that, which you can buy for a few dollars. It's important to choose a plastic that has a smooth texture however; gritty textures don't work all that well with suction-cups. Then place it on a pillow:





You can also place a few towels over the plastic cover, for a bit more comfort and not to feel the hard plastic during sex:





You can then take an old pillow cover and make a hole into it with a pair of scissors (just a bit larger than the diameter of your dildo). Next, put that pillow cover over your whole setup, while passing the dildo through the hole:





Isn't that fucking awesome!? This is absolutely fantastic to simulate double-penetration with a partner: it's very stable, very comfortable, and the extra-thickness of the pillow is also perfect to position yourself properly. It will really feel as if you're lying on a guy while your real partner will wildly fuck your other orifice.

This whole setup is so solid/stable that you can even lift it by the cock. This might also prove you that the Vac-U-Lock system is quite reliable; the suction-cup adapter is very hard to remove from the dildo:





Anyway, I really don't know why women keep digging firefighters, cops or lawyers. Engineers are so much funner.