Today’s guest post is kindly sponsored by Hismith, manufacturer and retailer of premium sex machines.
My partner and I had been talking about a threesome for six months. It started on a road trip, one of those conversations where you’re tired and honest and the guardrails come down. Neither of us had done it before and we both found the idea electric: bringing someone new into the mix, seeing each other through someone else’s eyes, breaking out of the five-year routine that had started to feel a little too predictable.
But the hypothetical discussions that were fun at midnight felt heavy and a little too real in the light of day. The logistics alone were a nightmare. Coordinating three schedules, managing jealousy, finding someone we both liked—it suddenly felt less like planning great sex and more like executing a corporate merger. Every time we found someone we thought we might be into, the same questions and insecurities arose. Who was more into them? Whose idea even was this, really?
That’s when it hit us: what we actually wanted wasn’t an extra person in our bedroom. It was just… something new. Something that would shake up our routine without shaking up our relationship. So we tabled the idea of opening up our relationship and started looking at things we could enjoy just the two of us instead. Ultimately, we bought the Hismith 4.0 Premium.
I didn’t expect it to work. Not the machine itself; I’d read enough reviews to feel confident it would perform. What I didn’t expect was how much this new sexual adventure would bring to our relationship.
You might (reasonably!) wonder why we’d spend nearly $600 on a sex machine instead of choosing something cheaper and less space-intensive, like a dildo or vibrator. But when we started looking at toys together, we realised that what we were looking for wasn’t just power or speed, but a toy to play a specific role. A typical vibrator or dildo still requires someone to hold it, position it, control the rhythm. A sex machine, though, takes this labour out of the equation. My partner could lie next to me, witnessing my pleasure without any physical obligation to perform. The Hismith sex machine enabled us to shift between the roles of active participant and relaxed witness, and that’s what ultimately made the threesome fantasy unnecessary. We didn’t actually want a third person. We just wanted the equivalent of a third pair of hands.
The Specs
The Hismith 4.0 Premium has a stainless steel and ABS plastic body. Its 100W brushless turbine motor can deliver up to 267 strokes per minute, with a stroke length that’s adjustable from 1.3”up to 5.03”. It retails for $599/£599.
Fully adjustable, the Hismith 4.0 allows you to enjoy various different positions. One One silicone dildo (5.8” insertable length) is included, and the KlicLok system allows you to purchase and use additional attachments if you like. It also comes with a wired digital display controller, a set of antiskid covers, an adaptor, a canvas storage and travel bag, and the various components you’ll need to set it up.
This machine weighs 11.5kg and measures 18.03” x 17.67” x 10.23” when fully assembled.
What We Loved About This Hismith Sex Machine
The Hismith 4.0’s KlicLok quick-change system is a breeze to use. I’ve tried machines where swapping out one attachment for another meant sweating over a tiny screw while the whole thing wobbled. With this one, though, it’s as quick and easy as swapping a camera lens. With different types, textures, and sizes of toys available, you might find yourself swapping them more than you think, sometimes mid-session. But because there’s zero friction to doing it, there’s no reason not to.
The Hismith app also pleasantly surprised me. I’m cynical about smart toys, which are often laggy and frustrating to use. But the Hismith 4.0’s Bluetooth connection was rock solid and responsive, with virtually no delay.
Noise-wise, this machine definitely makes a noticeable sound, but the level is totally acceptable. The brushless motor hums but doesn’t scream. If your walls are thin, you might want to stick to lower settings late at night or when others are home.
Things to Be Aware Of
I love this machine, but storage is an issue. This thing pretty much as to live out in the open. Though a large carrying case is included, it’s not a “tuck in the nightstand drawer and forget about it” product. If you have room-mates or nosy visitors, plan your setup accordingly. And if you live in a small apartment and space is at a premium, you might like to consider a mini sex machine instead.
The Shifts That Surprised Me: What The Hismith 4.0 Sex Machine Did For My Sex Life
The biggest surprise wasn’t the pleasure and orgasms this machine gave–that was expected. No, what surprised me the most was the pressure it lifted.
I’m the type of person who worries about performance during sex. “Is this taking too long?” “Is my rhythm off?” “Are they still enjoying this or do they just wish I’d hurry up and finish already?” With this machine, that anxiety evaporated. There’s nothing to manage because there’s no person on the other end to disappoint. No coordination is required. Just presence. The machine does the labor and all you have to do is feel. If you’ve ever been the partner who worries you can’t last long enough, or the partner who worries they’re asking for too much, you might recognise the relief you feel when you find a solution that works. For us, that solution was a fucking machine.
The first time we tried the Hismith sex machine, my partner said something I think about a lot. They said: “I finally got to fully relax and just watch you feel good, without carrying the pressure of having to make it all happen.” That’s not something a handheld toy can offer, but it also wouldn’t have been a fair expectation to put on a third person. The machine allows us to go as long as we want and stop when we’re done.
Is the Hismith 4.0 Sex Machine Worth It?
$600 is a significant investment, and this machine isn’t going to be“impulse purchase” territory for most people. But the build quality is exceptional. And, compared to the emotional cost of a threesome we absolutely were’nt ready for, it was a bargain.
If you’re looking for something that functions as an extra pair of hands without the pressure, jealousy, or scheduling hell of opening up your relationship, a sex machine can be a fabulous investment. Just maybe skip it if you don’t have the storage space!
About the Writer
Quin is a writer focused on wellness, lifestyle, and emerging technology topics. He enjoys exploring how innovation influences modern relationships and everyday experiences.
All views in this sponsored post are the writer’s own.

