How to Use a Strap-On Harness with Your Sex Machine

Quick Answer

To use a strap-on harness with a sex machine, attach the harness to the machine's thrusting arm or saddle, secure it firmly, and position yourself for penetration. Ensure the harness is compatible with your machine's attachment system, and always use plenty of lubricant for comfort and safety.

Combining a strap-on harness with a sex machine opens up a world of hands-free, customizable penetration. Whether you're looking to simulate partner play or simply want more control over depth and angle, this setup can transform your solo or partnered sessions. But getting it right requires a bit of know-how to ensure safety, comfort, and maximum pleasure.

In this guide, we'll walk you through the process step by step, from choosing the right harness to mounting it on your machine. We'll also highlight common mistakes to avoid and recommend products that make the experience seamless.

Understanding Your Sex Machine's Attachment System

Before you can attach a strap-on harness, you need to understand how your sex machine connects to toys. Most machines, like the Motorbunny Buck, use a Vac-U-Lock system, which features a suction-like hole that securely holds compatible dildos. Others may have a universal clamp or a flat plate with screw holes. Check your machine's manual or product description to identify its attachment method.

If your machine uses Vac-U-Lock, you'll need a harness that is either compatible with Vac-U-Lock or can be adapted. Some harnesses come with a built-in O-ring that can fit over the machine's arm, while others may require a separate adapter. For machines with a flat plate, you can often place the harness over the plate and secure it with straps or zip ties, but this is less stable.

• Check the machine's attachment point: Vac-U-Lock, clamp, or plate.
• Ensure the harness's O-ring or mounting mechanism matches the machine's arm or plate.
• If in doubt, contact the manufacturer or read online forums for compatibility tips.

Choosing the Right Strap-On Harness

Not all strap-on harnesses are created equal. For sex machine use, you need a harness that is sturdy, adjustable, and can be securely attached to the machine. Look for harnesses made of durable materials like nylon or leather, with strong buckles or velcro. The O-ring size should match the diameter of the machine's arm or the dildo you plan to use.

Consider whether you want a harness that holds a dildo in place via an O-ring or one that uses a Vac-U-Lock connector. Some harnesses are designed specifically for machine use and come with additional straps or clips. If you're using a machine like the Motorbunny Buck, which has a saddle design, you might opt for a harness that can be worn by a partner while they ride the machine, or one that attaches directly to the saddle.

• Prioritize adjustability and secure fastening to prevent slipping.
• Test the harness with your dildo to ensure a snug fit.
• For machine use, avoid harnesses with excessive padding that might interfere with attachment.

Step-by-Step: Setting Up Your Strap-On with a Sex Machine

Once you have the right harness and understand your machine, follow these steps for a safe and pleasurable setup. Start by cleaning all components with a sex toy cleaner or mild soap and water. Then, attach the harness to the machine's arm or saddle. For Vac-U-Lock machines, you may need to insert the harness's dildo into the machine's hole first, then secure the harness around the arm.

Position the harness so that the dildo points in the direction you want. Tighten all straps and buckles to ensure the harness doesn't move during use. Test the setup by turning on the machine at a low speed to check for any wobbling or instability. If everything feels secure, you're ready to go.

• Always use a condom on the dildo if sharing between partners.
• Apply a generous amount of water-based lubricant to the dildo and the receiving partner.
• Start with slow speeds and shallow depths, especially if you're new to this.

Safety and Comfort Considerations

Safety should always come first. Ensure the harness is not too tight, as this can restrict blood flow or cause discomfort. The machine's thrusting motion can be powerful, so it's crucial to secure the harness properly to prevent it from slipping off. If you're using a saddle-style machine like the Motorbunny Buck, make sure the harness is positioned so that the dildo aligns with your body comfortably.

Listen to your body. If you feel any pain or discomfort, stop immediately and adjust the setup. Remember that the machine can thrust faster and deeper than a human partner, so take breaks and use plenty of lubrication. It's also wise to have a safe word or signal if you're using this with a partner.

• Never leave the machine running unattended.
• Check for any wear and tear on the harness or machine parts regularly.
• After use, clean all components thoroughly and store them properly.

Step-by-Step: Using Your Strap-On with a Sex Machine

1. Prepare Your Equipment: Clean all parts: the harness, dildo, and machine attachment point. Ensure the harness is dry and free of any residue. Checkpoint: All components are clean and ready.
2. Attach the Harness to the Machine: Depending on your machine's design, either slide the harness over the arm or attach it to the saddle using straps. For Vac-U-Lock machines, insert the dildo into the machine's hole first, then position the harness over it. Checkpoint: The harness is snug and does not move when you wiggle it.
3. Secure and Adjust: Tighten all straps and buckles. Adjust the angle of the dildo to your preferred position. Ensure the O-ring or attachment point is aligned with your body. Checkpoint: The setup feels stable and comfortable.
4. Test at Low Speed: Turn on the machine at the lowest speed setting. Observe if the harness stays in place and if the thrusting motion is smooth. Make adjustments if needed. Checkpoint: No wobbling or slipping observed.
5. Lubricate and Position: Apply a generous amount of water-based lubricant to the dildo and the receiving partner. Position yourself or your partner over the machine, guiding the dildo to the entrance. Checkpoint: Communication and consent are clear if with a partner.
6. Begin Slowly and Communicate: Start with slow, shallow thrusts. Gradually increase speed and depth as comfort allows. Regularly check in with your partner or yourself for any discomfort. Mistake to avoid: Don't rush into high speeds; build up gradually.

Recommended Products for Strap-On + Machine Play

• Motorbunny Buck - Thrusting Sex Machine: The world’s first and only hybrid saddle vibrator and thrusting sex machine. Including three silicone attachments and two different thrusting motion toggles BUCK offers the ideal vibe and thrust combo for everyone! Its saddle design and Vac-U-Lock compatibility make it easy to attach a strap-on harness for hands-free, customizable penetration.
• Doc Johnson Vac-u-lock 7.5 inch Dong (Caramel): With its classic bestselling shape, phallic head, and perfectly textured shaft, this 7.5” attachment will have you falling in love! Made with lifelike ULTRASKYNTM material, the Vac-U-Lock 7.5 Inch Thin Dong Attachment works with all Vac-U-LockTM systems. This attachment works seamlessly with the Motorbunny Buck's Vac-U-Lock adapter, providing a secure and realistic option for strap-on play.

Combining a strap-on harness with a sex machine can elevate your play to new heights, offering endless possibilities for solo or partnered exploration. By following these steps and prioritizing safety, you'll be well on your way to a thrilling and satisfying experience. Remember to choose quality products that are compatible with your machine, and always listen to your body.