Choosing the Right Vac-U-Lock Attachment for Your Sex Machine

Quick Answer

To choose the right Vac-U-Lock attachment, first check your machine's compatibility—most Motorbunny models need an adapter. Then decide on size and material based on your preferences, and always ensure the attachment is securely locked before use.

Vac-U-Lock attachments offer a versatile way to customize your sex machine experience. Whether you're looking for a more realistic feel, a different size, or a specific shape, understanding how these attachments work will help you make a smart purchase.

This guide breaks down what to consider—from fit and compatibility to material and care—so you can confidently pick the right Vac-U-Lock dong for your needs.

Understanding Vac-U-Lock Compatibility

Not all sex machines are created equal, and neither are their attachment points. The Vac-U-Lock system uses a specialized hole at the base of the dildo that fits onto a locking adapter. Before buying any attachment, check if your machine has a Vac-U-Lock compatible mount or if you need a separate adapter.

For example, the Motorbunny Original Mount Gushmore includes a rotating Vac-U-Lock adapter, making it easy to swap in any standard Vac-U-Lock dong. If your machine doesn't have this built-in, you might need a universal Vac-U-Lock adapter that attaches to your existing setup.

• Always double-check the connection type before purchasing to avoid compatibility issues.
• If you're unsure, look for machines or attachments that specify 'Vac-U-Lock compatible.'

Size and Material Considerations

Vac-U-Lock attachments come in various sizes, from 8 inches to 10 inches or more. Consider your comfort level and experience. Beginners might prefer a shorter, softer option, while experienced users may enjoy longer or thicker attachments.

Material matters too. Many Vac-U-Lock dongs use TPE or Ultraskyn for a realistic feel, but these are porous and require careful cleaning. Silicone attachments, like the Mt. Gushmore, are non-porous and easier to sanitize, but they may not be compatible with the standard Vac-U-Lock hole unless specified.

• If you prioritize hygiene, opt for silicone attachments that are fully compatible.
• For a lifelike experience, TPE and Ultraskyn are popular, but remember they need more maintenance.

Accessories and Enhancements

Beyond the basic dong, you can enhance your experience with add-ons like the XXL TPE Cover, which slips over a standard attachment to increase girth and length. This is a budget-friendly way to try a larger size without buying a new dildo.

Also consider attachments designed for specific purposes, like the Power Couple for shared pleasure. These may have different connection requirements, so always verify compatibility with your machine.

• Measurement covers can be a great way to experiment with size before committing to a new attachment.

Decision Rules

• Check your machine's mount: Determine if your machine has a built-in Vac-U-Lock adapter or if you need to purchase one separately. Look for terms like 'Vac-U-Lock compatible' in the product description. If you don't have an adapter, factor that cost into your budget.
• Choose size based on experience: Beginners should start with attachments around 7-8 inches, while experienced users may prefer 9-10 inches or more. Consider insertable length, not total length. Measure your comfort zone to avoid disappointment.
• Select material based on care preference: Silicone is non-porous and easy to clean but may feel firmer. TPE/Ultraskyn offers realism but requires thorough cleaning and can't be fully sanitized. If you share toys, silicone is the safer choice.

Product Facts

• Vac-U-Lock - 8 Inch ULTRASKYN Cock: Molded directly from a real cock with genuine detailing including plush balls, distinct veins, and bulbous heads. Developed with a groundbreaking ULTRASKYN dual-density formula: hard on the inside and soft on the outside. The dual-density design gives a realistic feel while maintaining structure—ideal for those who want lifelike texture without sacrificing firmness.
• Motorbunny Original Mount Gushmore w/ Vac-U-Lock Adapter: Made of 100% platinum-cured silicone, combines a rotating Vac-U-Lock attachment point with a clitoral stimulation ridge. Compatible with hundreds of Vac-U-Lock products. This attachment expands your options, letting you use any standard Vac-U-Lock dong while adding extra clitoral stimulation—a versatile choice for Motorbunny owners.

Fit Guidance

Best For

• Individuals who own a Motorbunny or other machine with a Vac-U-Lock mount and want to expand their attachment collection.
• Those seeking a realistic experience with dual-density Ultraskyn material.

Not For

• People with machines that only accept proprietary attachments without an adapter.
• Those who prefer non-phallic or specialty shapes that are not Vac-U-Lock compatible.

Choosing the right Vac-U-Lock attachment doesn't have to be complicated. By checking compatibility, considering size and material, and using the decision rules above, you'll find the perfect fit for your sex machine and enjoy a customized experience every time.