The Deuce is a jockstrap-style double-strap harness specifically designed for the male anatomy. It’s a feat of form, function and comfort in a deceptively simple design.

Double penetration (DP) is an obvious use for the Deuce but it can be used for so much more!

Uses for a male:
- DP with a dildo and penis
- DP with two dildos (dildo with balls in bottom opening is more stable than a flared base)
- Vaginal/anal penetration without an erection – whether due to erectile dysfunction (ED), to continue penis in vagina (PIV) sex even after orgasm, during recovery time between erections, denial play (either denying partner his penis or partner denying his use of his penis)
- DP/PIV/Anal Denial play - either denying his partner of his penis or partner denying him the use of his penis

Uses for a female:
- DP with two dildos
- Vaginal/anal penetration
- Gender play

We haven’t tried it but, theoretically, you should be able to use the Deuce for hands-free double vaginal or double anal penetration.

I'm a visual person so I would normally include at least a handful of photos. Unfortunately, I didn't take any photos when I first received the Deuce so I'm going to have to be satisfied with including a couple photos of my husband modeling the harness.

The pouches on this harness are 77% nylon/27% spandex; the fabric is thick, stretchy and is cool, soft and silky to the touch with no noticeable scent. The fabric looks and feels like the material used for high quality swimwear and is water-resistant.

SpareParts took things a step further by double layering the fabric throughout the harness which makes for a sturdy, stable foundation for the elastic o-rings. The top o-ring and all hidden edges are nicely finished while the lower o-ring and entire perimeter of the pouches are bound by the same soft, stretchy material and finished with a nice top-stitch.

The 2” wide, heavyweight elastic waistband is sturdy yet comfortable – it stays in place without chafing. The 1.5” x 2” Velcro hook tabs attach securely to the 1.5” wide Velcro loop strips that are stitched along the entire back half of the waistband.

The 5/8” wide leg straps are wide enough to provide good support while still narrow enough to ensure comfort; they don’t bite into your skin.

All of the elastic used on the Deuce has a slight sheen on the outward facing side and feels silky smooth backed by a softer, matte finish which feels very nice against the skin and also contributes to the incredible non-slip fit.

The first thing you’ll notice about the Deuce is the quality of the materials and the excellent workmanship that went into the design and creation of this treasure.

The two openings on the front of the harness (one above the other) are designed to hold a dildo and penis, respectively. The top opening has a thick elastic o-ring that holds dildos firmly in place while the bottom opening is only slightly elastic making it very comfortable for both flaccid and erect penises. Both openings are backed by overlapping flaps that can be used as a barrier between the dildo base(s) and your body. The bottom pouch is larger to comfortably contain the scrotum and even a flaccid penis. There is also the option to not use the bottom pouch at all. The top pouch is amazingly accommodating – we’ve been able to mount dildos with 3.5” diameter bases with ease.

Top/O-ring Opening (for dildo): 1.25” – 2” diameter (3.92” – 6.28” circumference)
Bottom Opening (for penis): 1.5” – 1.87” (4.71” – 5.89” circumference)

For men of larger girth, there is also Deuce Magnum. It also comes in sizes A and B sharing the same sizing dimensions as the Deuce but featuring a larger second/bottom o-ring: 2” – 2.37” diameter (6.28” – 7.46” circumference).

The waistband is a 2” wide heavyweight elastic band, with Velcro closures to ensure a good fit with the company’s name and logo centered at the front. There are 5/8” wide elastic strips on each side of the waistband which allow you to tweak the fit even further. These strips are very easy to adjust – pull the end tab just as you would to tighten a seatbelt. Small teeth in the plastic buckles keep the elastic from slipping, yet all you have to do to release the strip is lift the rounded tab to disengage the teeth.

Each leg strap is made of 3/4" wide elastic with a sliding buckle to adjust the fit and a second, stationary buckle just below the waistband that has teeth to hold the elastic securely in place. We haven’t had to readjust the leg straps – they don’t budge even with vigorous thrusting.

EdenFantasys carries the Deuce in two sizes, A and B – size A was used for this review. Size A is available in black or white; size B is available in black.

The Deuce is fully adjustable, size A fitting a broad size range (per manufacturer):
Waist/Hip: 20” – 50” (size B: 35” – 65”)
Leg Straps: 10” - 16” (size B: 14” – 24”)

The Deuce fits my husband very well (he wears size 36 pants) and will accommodate men of many shapes and sizes due to the multiple ways to tweak its fit. A more detailed description of the various adjustments that can be made was included under the Design/Craftsmanship heading above.

Neither of us had prior experience using a harness yet there was no learning curve with adjusting the fit or mounting dildos. After selecting and inserting a dildo in the top opening you literally just step into the leg straps and pull it up like you would underwear. If your plan is DP, you then slide your penis through the bottom opening and drop your scrotum into the pouch before cinching up the waistband with the Velcro tabs. Further, you can fine tune the fit by tightening the elastic strips located on each side with just a tug.

If you want to switch to another dildo all you have to do is release the Velcro tabs and pull the pouch area away from your body. If you didn’t already do so, you can put yourself through the bottom opening into the pouch using this same method.

Removing the Deuce takes seconds – release the two Velcro fastenings and slide it off. Clean up is a breeze – more on that topic in the Care and Maintenance section below.

My husband tells me that the Deuce is very comfortable and our dildos never waver once they are in place. We change positions regularly and the only times he has to make adjustments on the fly is when he didn’t cinch up the waistband tightly enough before getting busy.

His only complaint of sorts was to say dildos with larger balls tend to press uncomfortably against his penis as things heat up so we only use dildos without balls for DP. When we do use a dildo with balls he just makes sure to not put himself in the lower pouch. The softness of the material and the thickness of the pouch then acts as a very nice buffer and he’s good to go.

Maintenance is a breeze with this harness due to the materials used and its construction. Per the label printed in the back of the waistband: Hand or machine wash. Warm. Gentle separately. Mild soap. No bleach. Do not use fabric softener. Tumble dry low temp or lay flat to dry. No iron.

I prefer to hand-wash and air dry because it prolongs the life of garments in general and it really doesn't take much to clean the Deuce after use. Most of the time all it needs is a quick wipe down with a damp washcloth.

I've found that if you hang this harness by the pouch to line dry after washing it dries much more quickly than laying it flat.

SpareParts does an excellent job of presentation with their simple yet classy packaging. The Deuce arrived in a sturdy black box with an attractively decorated cardboard half-sleeve (body shot of a male with rockin’ abs modeling the Deuce). Peeling back the heavyweight silver tissue revealed the Deuce and when we removed it from the box we found it was wrapped around a zippered black storage pouch with the company’s name and logo centered on the front. The pouch is made from a lightweight, silky, stretchy material and has a separate inner pocket.

Included is a basic instruction booklet with a size chart of the Deuce and Deuce Magnum, care instructions, dildo insertion, how to put on the harness and making adjustments to fit.

The booklet does include a tip for inserting larger dildos – slipping a condom or plastic bag over the dildo so it’ll slide through the o-ring more easily – then removing the plastic bag before using. We used a square of plastic wrap and it worked very well.

The Deuce looks like a jock-strap and won’t raise any eyebrows unless it’s closely inspected. It’s not the Deuce that would draw attention, it’s the dildos you take along with it.

If you’ve read my other reviews, you’ll know that my husband and I both enjoy DP so the Deuce would’ve been a great addition based on that function alone.

However, we’ve been dealing with ED issues and I’d been wanting to introduce the Deuce harness into our lovemaking for some time thinking it would be a great tool to help us deal physically and mentally with the ED as well as an alternative to the Liberator Wing for hands-free DP.

I thought that using a dildo in the harness for PIV sex would lessen the pressure he was putting on himself to “perform” and, fortunately, he readily agreed. I’ve kicked myself more than a few times for not talking up the Deuce harness sooner.

The psychological benefits for my husband have been far greater than I had hoped or dreamed! It’s also been incredible to witness how quickly things have changed for the better in his overall demeanor as well as our sex life. Not having to give a second thought to whether or not he’ll be hard enough for PIV or anal sex has been a huge relief. He said he never realized just how much pressure he was putting on himself to perform despite our regular incorporation of penetrative toys. All he could see was my rapidly and steadily increasing sex drive while his just as rapidly and steadily declined. An added bonus is that he doesn’t have to outlast me – he can orgasm, pull on the harness and continue without me losing ground towards an orgasm of my own.

Long story short – removing the emphasis on his ability to “perform” has, unsurprisingly, resulted in increased performance which has led to an increase in his sex drive.

We’ve been enjoying hands-free DP sex with the assistance of the Liberator Wing but the Deuce harness introduced a nice variation – penetration with tandem thrusts. It’s a very different sensation than when I’m clenching/grinding on a stationary dildo (mounted in the Wing) as he thrusts from behind. Unfortunately for him, the tandem movement means he actually has less stimulation than when he is thrusting against a stationary toy (whether it’s a anal plug or dildo in my vagina) but he said “he’ll continue to do it if he has to” – what a champ! Seriously, he’s enjoying the new sensations as much as I am.

My favorite dildos are VixSkin (dual-density silicone) in the 1.75” – 2” diameter range around their bases which means they are near the maximum size for the firm elastic of the top o-ring. Even though the harness material is smooth and silky it still has a tendency to grab on to the silicone. Even with the drag, it doesn’t take an inordinate amount of time or effort to get them into place.

But, as mentioned earlier, covering the dildo with a square of plastic wrap helps it slide quickly and easily through the o-ring. We use this little trick all the time as our preferred dildos are dual-density silicone and near the top end of what the o-ring will accommodate and an added bonus is it keeps lint from the harness from adhering to the silicone.

If I had any doubt as to the stability of the elastic top o-ring it was put to rest when my husband mounted the VixSkin Outlaw (balls were slipped into the bottom half of the lower pouch). Despite weighing in at a hefty 1lb. 4.1oz. that bad boy stood out straight and proud! My husband said the harness was rock solid – he didn’t have to make any adjustments and Outlaw’s weight never threatened to pull the harness downwards. He always felt in complete control of the Outlaw.




Even with my husband’s renewed exuberance for sex we’ve used the Deuce for dildo-only PIV sex on several occasions. Like many other couples, we’d focus on me reaching orgasm first because for the most part my husband, and I quote, “is one and done”. Now we can really relax and have fun getting him off before moving on to more fun.

The Deuce has performed even better than either of us had hoped. We’ve used it for PIV and anal sex using only a dildo as well as DP sex with my husband and a dildo. We’ve had no awkwardness so far despite using many variations of missionary and doggy-style during PIV, anal or DP sex.

When using two dildos (pouches resting against my husband’s cock and balls) there is some “wiggle” for lack of a better word. The harness itself remains solidly in position but the dildo in the bottom pouch, even if it has balls, can move a bit because that pouch is considerably larger than the one on top. It still works well, just not as stable as a dildo combined with a real penis.

I tried the harness for myself and there was no way I could make it work. I can get the harness to sit firmly and comfortably against my body but there’s nothing I can do to keep the bottom pouch from puffing out away from my body. Even a dildo with balls in the bottom pouch would sway up and down and side to side.

There have been some unintended consequences that my husband especially loves. Since my VixSkins are always happy to stand in for him, he now gets to enjoy a lot more blow jobs and hand jobs to orgasm!