Vac-U-Lock Double Penetration Velvet Harness

The Vac-U-Lock Double Penetration Velvet Harness from Doc Johnson is a strap-on harness that holds two Vac-U-Lock compatible attachments at once for dual penetration play. Adjustable straps secure it around your waist and thighs, while the open-back design keeps you accessible to your partner throughout a session.

A closer look

The Vac-U-Lock Double Penetration Velvet Harness combines soft velvet fabric with a dual-attachment system designed for couples exploring simultaneous stimulation. The harness wraps around your waist and thighs with adjustable straps that hold firm without pinching. Two Vac-U-Lock sockets sit positioned to accept penetrative attachments, and the open-back construction means your partner can touch and stimulate you directly throughout wear. Unlike single-point harnesses, this design lets you use two different anal sex toys or attachments at the same time, opening up more sensation combinations.

The velvet surface distinguishes this harness from leather or silicone alternatives. Leather suits heavy, extended sessions where durability matters most; velvet prioritises comfort against bare skin during play that may last hours. The material breathes and moves with you, and the adjustable straps mean you can tighten or loosen the fit mid-session without removing the harness entirely.

Main features

• Dual Vac-U-Lock compatibility: Two attachment points accept different Vac-U-Lock plugs simultaneously, letting you combine sensations without stopping to swap.
• Velvet construction: Soft, durable fabric caresses skin while maintaining strength through repeated use and cleaning.
• Adjustable strap system: Multiple fastening points across waist and thighs customise the fit to your body and secure the harness during movement.
• Open-back design: Leaves your rear and genital area fully accessible so your partner can touch, tease or stimulate you directly.
• No power needed: Harness-only system requires no batteries, charging or setup beyond securing the straps and inserting attachments.

The detail

• Material: well-made velvet fabric throughout the main harness; adjustable closure straps in complementary fabric for secure fastening.
• Vac-U-Lock points: Two attachment sockets positioned for dual penetration; compatible with all Doc Johnson Vac-U-Lock attachments.
• Strap configuration: Waist strap and thigh straps with multiple adjustment positions to fit different hip and torso sizes.
• Weight: Harness alone weighs approximately 150 grams; total weight depends on attached penetrative toys.
• Box contents: Harness, two Vac-U-Lock compatible plugs, and cleaning instructions; no batteries included.

Preparation and first use

Before your first session, wash the harness and both attachments with warm water and mild soap, then pat dry. Check that all straps move freely and that the Vac-U-Lock sockets are clean and free of debris. Try on the harness alone first without attachments so you can adjust the waist and thigh straps to a comfortable tightness—snug enough to stay in place during movement, but not so tight that it cuts off circulation or causes discomfort. This test fit helps you find your adjustment points before partnered play begins.

During first use, start with gentle insertion and slower movement while you both adjust to the sensation of dual penetration. The velvet may feel warm against your skin as you move, which is normal. If you find the fit needs adjustment mid-session, you can loosen straps without removing the harness. Many people find that pairing the harness with Jiggle Sex Beads or other stimulation creates more varied sensation. Take breaks if you need them; there is no rush to extend your session beyond what feels good.

Is this the one for you?

Care and storage

Wash the harness and attachments with warm water and mild soap after each use, then air-dry completely before storage. Never soak the velvet for extended periods or use harsh cleaners, as these may damage the fabric or cause discolouration. Store the harness in a cool, dry place away from direct sunlight to preserve the velvet's softness and colour. Keep attachments separate in a clean container if you are not using them immediately.

Want to know more?

Understanding how to prepare, use and maintain dual-penetration harnesses helps you get the most from your investment and keeps both partners comfortable and safe. Read our detailed Anal Sex Toys Guide for broader context on this category of play and how to approach it step by step.

What to expect

The velvet feels noticeably softer against bare skin than leather or silicone harnesses, especially during sessions lasting an hour or more. First-time users often find that the dual attachment points take a moment to position correctly—both sockets need to align with your body and your partner's entry angle, so communication and a little trial adjustment are normal on your first wear.

The open-back design genuinely changes the experience. You remain fully accessible to your partner's hands and mouth throughout, which keeps the intimacy high and makes it easy to add extra stimulation. Most people find this openness encourages closer contact and more varied sensation than a closed-back harness would provide.

Cleaning the velvet is straightforward—warm water and mild soap do the job without fading or degrading the fabric. The Vac-U-Lock sockets are durable and do not loosen with normal use, though you should inspect them occasionally. The straps stay secure through vigorous movement and do not slip once adjusted properly to your body.

People who struggle with harness comfort often find that velvet suits them better than alternatives, and those already comfortable in harnesses appreciate the softness as a high-end upgrade. Buyers who return this item tend to be those who underestimated the learning curve for dual attachment alignment or who needed a single-point harness first before adding a second point.

How it compares

Why choose this one

Check out the Vac-U-Lock Double Penetration Velvet Harness if you want comfort and adaptability in one system. The velvet sets it apart from harder materials, and the dual Vac-U-Lock points mean you control which attachments you use and when. Order it from Malechastity.com.au with discreet Australia-wide delivery and start exploring dual sensations at your own pace. Body-Safe Materials, Honestly Described.