Dual-ended strap-on attachment for couples seeking two-way penetration. Locks into any Vac-U-Lock harness system with 1.10 inch diameter.
Key Features:
Dual-ended attachment enables simultaneous two-way penetration for couples
Compatible with all existing Vac-U-Lock harness systems instantly
Secure connection locks firmly without slipping during sessions
Comfortable 1.10 inch diameter provides satisfying fullness together
Made in USA by Doc Johnson since 1976
The Vac-U-Lock Double Dong Plug Attachment from Doc Johnson is a dual-ended strap-on attachment designed for simultaneous two-way penetration. Compatible with all Vac-U-Lock harness systems, it measures 5.7 inches total length with 1.10 inch diameter. The attachment delivers shared intimacy experiences for couples exploring dual stimulation.
Simply plug the attachment into your Vac-U-Lock compatible harness for instant dual penetration capability. The wearer inserts one end while the other end extends outward for their partner. This creates simultaneous stimulation that intensifies with every movement. For men looking to enhance intimate moments, exploring our edible sex products can add playful variety to your sessions.
Unlike basic double dongs that require constant positioning, the Vac-U-Lock system locks securely in place. This means no slipping, no repositioning, just consistent contact where both partners need it most.
| Style/Type | Best For | What Makes It Different |
|---|---|---|
| Vac-U-Lock Double Dong | Couples with harness systems | Locks securely in place, hands-free operation |
| Flexible Double Dong | Beginners exploring dual play | Bendable design, no harness required |
| Strapless Double Dong | Experienced couples | Internal bulb holds in place naturally |
Couples with existing Vac-U-Lock systems: Men and their partners who already own compatible harnesses will love adding this dual stimulation option to their collection. Like exploring beaded cock plugs, it opens new sensations for adventurous couples.
Anyone seeking synchronized intimacy: Couples who want to experience penetration together rather than taking turns will find this attachment transforms their connection into something deeper and more intense.
This attachment turns your harness into a gateway for shared pleasure that most couples never experience. The moment you both feel that initial penetration, followed by the building intensity as movements sync up, you realize why dual stimulation creates such powerful intimacy. Doc Johnson's reputation since 1976 means you are getting reliable quality that performs when it matters most. For guys who want to explore deeper sensations, check out our buddy penis plugs for additional intensity options.
Real experience:
I was skeptical about how well the Vac-U-Lock system would hold this attachment, but it clicked in perfectly and stayed locked throughout our entire session. The 5.7 inch length gave us both exactly the right amount of penetration without being too much, and the girth felt substantial but comfortable.
What surprised me most was how the synchronized movement built our intensity together rather than separately. Every thrust we felt simultaneously, creating this incredible connection that regular toys just cannot match. The security of knowing it would not slip out let us focus completely on the sensations.
The Vac-U-Lock Double Dong Plug Attachment is part of our wider range of intimate accessories. Discover more options in the butt plugs collection to find exactly what you are looking for.
Transform your intimate moments with dual stimulation that brings couples closer together. Available now at MaleChastity.com.au with discrete shipping Australia-wide. Experience what synchronized pleasure feels like.
Malechastity.com.au ships with Australia Post. We ship from Sydney.
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 1-6 business days after shipping, but may subject to any postage carrier related delays beyond our control.
Free standard shipping on orders shipped within Australia above $200. For orders below $200 standard shipping within Australia is $12.95 and will be added at checkout.
Orders addressed to P.O box, G.P.O box or Parcel Collect will be handled by Australia Post. Extra time should be allocated for these orders.
Shipping Transit Times (Including Free Shipping)
Shipping time refers to the estimated time that it will take to deliver your order after it’s ready to ship (Please note this does not include time to process your order). Shipping time does not commence after your order is put through but begins the moment your order has been processed and is ready to dispatch via the our freight carrier..
All in stock orders are generally processed on the same day the order was placed on business days for orders received before 12pm. Generally, orders are processed and shipped the same day or next business day.
Orders are typically received 1-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the nearest depot location.
All orders are generally processed on the same day the order was placed on business days before 12pm.
Generally, orders are processed and shipped the same day or next Business day.
Packages below 2kg are usually received 3-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the local Australia Post depot.
The price for international shipping is AU$12.95 for orders equal to or below 0.399kg (399grams), and AU$22.95 for orders with a total weight equal to or above 0.4kg (400 grams).
All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 6-30 business days after shipping.
If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from your nearest delivery depot.
Please note in regards to all orders
– These expected delivery dates/times are based on carrier shipping practices, your destination, and the items in your order.
– Expected delivery dates are estimates. Orders can be delayed due to fraud verification or the time of the order being placed. Items that are not regularly stocked cannot be held to the expected delivery dates.
– Orders may be delivered in separate shipments.
– The order cut off times are based on normal Business Hours and exclude weekends and Holidays: Monday – Friday 12 pm
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Due to large amounts of online credit card fraud, all orders are subject to approval by our payment verification department. We will notify you by phone or email should your order be delayed.
We have a 14 day return policy, which means you have 14 days after receiving your item to request a refund for any defective products.
Returns and exchanges are only available for faulty items, goods not as described, or in some instances, for incorrect sizing.
Due to health and safety regulations, Maleshastity.com.au cannot resell any returned or exchanged products.
This policy is in place to prioritise your well-being and ensure that you receive the highest standard of hygiene and quality in all products.
To be eligible for a refund, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.
You’ll also need the receipt or proof of purchase. We do not issue refunds for change of mind or incorrect choice.
Under Australian Consumer Law, we are not obliged to accept returns for “incorrect choice” or “change of mind” so please choose your products carefully.
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If your return request is accepted, we will provide you with all instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
We do not accept returns for any products that have change of mind, damaged products, or for products that have been used or do not have their original packaging.
Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 7 business days.
Please remember it can take some time for your bank or credit card company to process and post the refund too.