Review of the Marchosias by Twisted Beast: a demonic dildo with a serious knot

TL;DR

Marchosias by Twisted Beast is a demon-inspired dildo with a well-structured shape that builds up gradually, ending in a serious knot. Tested here in Large size (10.5″ knot circumference), it features full, sculpted curves and a soft silicone that adds flexibility — provided you take the time to warm up properly.

This model is clearly aimed at fantasy toy users who enjoy a progressive stretch, a noticeable lock-in effect, and a form that asserts itself without being harsh. The Vac-U-Lock compatibility adds some versatility for those using harnesses or accessories.

A demanding but well-balanced toy, made for those who like sensations that build and fully take hold.

Where to buy the Marchosias?

Discovering the Marchosias by Twisted Beast

This review is a bit special: it’s not based on a personal purchase, but on the very first toy I received through a brand collaboration.
I originally contacted Twisted Beast to propose an interview, as part of my indie maker interview series. The interview has been postponed for now — but right from the first messages, I was open about Big Good Dildos, its modest beginnings, and its still limited reach.
That’s why I was pleasantly surprised when Joey, the brand’s marketing lead, offered to send me a core model to try out.
It’s a meaningful step for Big Good Dildos: a sign of trust, but also a balancing act — staying critical while highlighting thoughtful craftsmanship.

Eagerly awaited shipping

After a few email exchanges, Twisted Beast handled the shipping from the UK — which, post-Brexit, always comes with a bit of uncertainty. Despite some minor delays at French customs, the package arrived without issue or extra fees — a small but appreciated detail for this kind of order.

A well-thought-out unboxing

The Marchosias came wrapped in protective plastic, but the extras made the difference: a storage pouch, a sticker, and a lore card featuring the creature behind the design. Simple touches, but they show the brand’s attention to detail and their effort to create a full experience beyond the toy itself.

Choosing the right version of the Marchosias

The Marchosias comes in several sizes and two main colors. Depending on your level and what you’re looking for, you can pick a version that fits — from compact to bold — always with a single firmness option chosen to enhance the experience.

Available sizes

The Marchosias is available in four main sizes:

• Small — A compact version, ideal for discovering animal-inspired shapes at your own pace.
• Medium — A more assertive step up, offering a good amount of volume for those used to fantasy toys.
• Large — A bigger format, made for users already comfortable with more filling toys.
• XL — The biggest available, with a knot reaching 13 inches in circumference — designed for those who like serious stretch and lock-in.

This clear range lets everyone find a size that matches their level and goals. A well-balanced lineup that suits both curious newcomers and more experienced users.

Firmness options

Twisted Beast offers two main firmness levels: soft and medium.
However, firmness isn’t selectable at checkout: most models are offered by default in soft, while certain specific designs come directly in medium. This keeps the catalog simple, but limits customization compared to other makers.

That said, the soft firmness strikes a good balance — flexible enough for smoother insertion, while still providing strong sensations, especially around structured areas like knots. The medium version, less common, adds more resistance and will suit those looking for a firmer, more intense experience.

Signature colors

The Marchosias comes in two color variants: Demon Blood and Demon Blood (Ombre).
At European resellers like Gaymegastore, the Demon Blood (Ombre) version is usually the one in stock. For specific color options or custom picks, you’ll need to order directly from the official Twisted Beast website.

Unlike other brands that offer wide customizable palettes, Twisted Beast focuses on a more limited selection — dark, bold, and fantasy-inspired. It’s a strong aesthetic choice that might not appeal to everyone, but clearly defines the brand’s identity.

A demonic design, inside and out

Marchosias fits perfectly into Twisted Beast’s demonic universe, while also drawing on familiar animal-inspired toy design — with a beast-like silhouette and a distinct knot. Rather than going for raw size, the brand crafted a model built for a dark, immersive aesthetic. Every detail, from shape to finish, reinforces the feeling of a sculpted creature straight from the underworld.

A beast-shaped toy made for sensation

The Marchosias has a silhouette that feels both smooth and threatening. Its tapered, asymmetric head combines one slightly flattened side and one sharper edge — a detail that influences how it feels depending on how you orient the toy during use.

The progression is well thought out: the shaft gradually widens, with a rounded bump on top and three more distinct bulges underneath. These shapes create a shifting sense of pressure that builds with movement, but without ever becoming harsh or abrupt.

Right before the knot, the shaft narrows briefly — which enhances the tension. The knot itself is round, prominent, and does exactly what it’s meant to do: create a clear moment of lock-in. On the Large version tested here, it measures around 10.5 inches in circumference — easily enough to give that deep push-pull feeling of hold and release.

Firm base, beastly presence

After the knot, the shaft narrows again and joins a long, sturdy base. On top of it, a pentagram is discreetly engraved into the silicone. Sculpted testicles give the toy added weight and balance, while also contributing to the overall look — reinforcing its beastly identity.
Even without a suction cup, the wide base allows it to stand on flat surfaces — practical both for use and storage.

The chosen color — Demon Blood (Ombre) — adds a lot to the visual impact: a deep red gradient that intensifies the toy’s infernal aura. Twisted Beast doesn’t offer a huge range of colors here, but leans instead on strong, evocative tones that perfectly match the dark fantasy world behind their designs.

A creature from the underworld

The Marchosias isn’t just another animal-style dildo — it belongs to a full infernal mythos.
In esoteric tradition, Marchosias is a great marquis of Hell, sent to hunt down souls trying to escape eternal punishment. Twisted Beast draws directly from this myth to shape their demon dog dildo — a demonic alpha predator, a wolf from hell, ready to lock its prey in once the knot has passed.

As the brand puts it: “The demon wolf is here to knot your hole.” Everything about the toy is built to embody that creature — its aesthetic, its role, its impact. From the engraved pentagram to the lore cards included in the box, every detail supports an experience that goes beyond the object itself — something that speaks to both the imagination and the body.

An immersive experience, between build-up and challenge

Marchosias in Large size isn’t just about volume. Its design is built for a clear progression, with an accessible entry followed by a bulge that traps and locks in place. It’s not the raw size that defines the experience, but how the shape gradually takes over.

A progressive, well-paced entry

The tapered head of the Marchosias makes the initial insertion fairly easy, even for a toy of this scale. But very quickly, the shape intensifies: the first bump is a clear milestone, and each extra inch adds pressure. This isn’t a smooth glide — you feel the volume shifting, and that’s where the design really comes into play.

Sensations vary depending on depth and movement. At first, the form feels contained. But the deeper you go, the more the toy dictates your pace — positioning, rhythm, breathing… everything gets more focused. That slow escalation, more than the size itself, defines the whole experience.

The knot: where things shift

The knot of the Marchosias, with its 10.5″ circumference (in the Large size), is clearly the design’s central feature. It’s not just a final hurdle — the whole shaft leads up to it, widening gradually and training your body for the stretch.

Getting past the knot takes patience. There’s real resistance, and sometimes you need to pause, let your body catch up. But the real challenge often comes after it’s in. The pressure ramps up, and your body, not yet used to that tension, might instinctively push it back out. You have to breathe, slow down, and learn to hold it in place.

That’s the key: not just getting it in, but managing to keep it there. That’s where the Marchosias shines — with a mix of tension and control that makes the whole effort worth it. Demanding, but deeply rewarding.

Soft silicone makes the difference

The Marchosias is made in soft silicone, and that matters. Without that flexibility, it would likely feel too rigid — especially during longer or more dynamic sessions. In solo use, the softness can be a slight challenge: the toy may bend or slip out with more vigorous movement. But in pegging or machine setups, that flexibility could actually become a strength, opening the door to faster rhythms and deeper sensations — even if I haven’t tested that directly.

Taking care of your Marchosias

A large toy like the Marchosias deserves a bit of care if you want it to last. Twisted Beast includes a storage pouch with each toy, which helps — but a few simple habits go a long way.

Cleaning: gentle but thorough

After each session, clean the Marchosias with warm water and a mild soap or toy cleaner. Avoid harsh soaps, alcohol-based products, or anything abrasive — they can damage the silicone surface.
Once clean, let it air dry on a clean surface or use a soft cloth.

Storage: protect the material

Twisted Beast recommends keeping the toy away from PVC or vinyl toys, which can release chemicals that react badly with silicone.
The included pouch helps protect it from dust and rubbing. Just store it somewhere clean, dry, and without being crammed in.

Usage tips: prep and lube

The Marchosias — especially in Large or XL — deserves a bit of planning. To keep the experience smooth and enjoyable, prep matters: warm-up, good lube, and compatible accessories all play a role.

Prepping your body before insertion

Even though the tapered shape of the Marchosias makes entry easier, it’s still an XXL toy that calls for real preparation.
A good warm-up with slimmer toys or appropriate stimulators can help relax the area and ease the gradual insertion.
Relaxation exercises — like controlled breathing and gentle pelvic contractions — can also help release tension and make the knot phase easier to handle.

Choosing the right lube

Twisted Beast explicitly recommends water-based lubricants only. Silicone-based lubes are to be avoided, as they can damage the toy’s surface.
For large toys like the Marchosias, more fluid lubes like Xlube (which the brand recommends) can help with glide — but any high-quality water-based lube will do the job.
Don’t hesitate to reapply during the session. It’s a simple habit that makes a big difference, no matter the toy.

One thing I did notice: even with Xlube, the lube seemed to dry out faster than usual during longer sessions. Hard to say if it’s due to Twisted Beast’s silicone or something else, but it’s worth keeping in mind.

Vac-U-Hole compatibility for harnesses and accessories

The Marchosias comes pre-drilled with a Vac-U-Hole system and includes a matching plastic plug.
This allows you to mount it on any Vac-U-Lock compatible harness, for added stability during partner play. Some accessories (like handles or extensions) can also be used with the same plug system.

Marchosias in short: a toy with its own rhythm

Marchosias is a dildo with a thoughtful design that sets the pace. Its shape guides the progression, demands attention, and makes you adjust at every step — all the way to the final lock-in, intense and deliberate. It’s not a toy you just grab and go. It takes time, preparation, and sometimes more than one try. But when it clicks, the feeling is precise, and holding it in place is genuinely rewarding.

Twisted Beast’s visual universe adds to the cohesion: this is a toy with a real identity, shaped by its form and the fantasy world it belongs to. A great pick for those who enjoy shapes that settle in, physical challenges you can manage, and toys that tell a story.

Where to buy the Marchosias?

To get your hands on the Marchosias, there are two main options:

• From the official Twisted Beast website: best base prices, full catalog access, and exclusive colors or editions. Just note that if you’re ordering from Europe, you might have to deal with international shipping costs and potential import taxes — depending on your country and customs declaration.
• From Gaymegastore, the official EU reseller. No import fees and faster shipping within Europe, though the listed prices are often higher than on the brand’s website, which lowers the price advantage overall.

• Twisted Beast (UK)
• gaymegastore.eu (CZ)

Before buying, I recommend comparing both options based on actual cost (shipping, taxes) and stock availability — especially if you’re after a specific color or size. Either way, the Marchosias remains a standout toy, combining beast-inspired design, controlled progression, and a clear lock-in effect.

See all the details of the Marchosias