Vibrating Sex Harness With 8 Cock By Doc Johnson

Coordinating penetration during partnered sex can be awkward and unsatisfying. The Vac-U-Lock Vibrating Sex Harness with 8 Cock Flesh solves this by giving you hands-free control, a secure fit, and customizable vibration—so both partners feel genuinely connected and stimulated.

What it is

The Vac-U-Lock Vibrating Sex Harness with 8 Cock Flesh is a strap-on system that combines an adjustable harness with a powerful vibrating dildo. Doc Johnson's patented Vac-U-Lock attachment system lets you swap dildos quickly and securely. The harness itself is made from neoprene with sturdy buckles, fitting waists from 24 to 53 inches. An 8-inch silicone dildo comes pre-installed, with a rechargeable remote control that powers multiple vibration patterns and intensities.

What sets this harness apart is flexibility. The Vac-U-Lock system means you're not locked into one dildo shape or size—you can experiment with different options as your needs and desires change. The remote control gives the penetrating partner real-time command over sensation, turning vibration into a tool for connection and shared pleasure. See the full BDSM Australia range of Strap-On-Me for additional harness and dildo options.

Key features

• Realistic 8-inch dildo: Substantial girth and length deliver deep, satisfying penetration with lifelike texture and weight.
• Vac-U-Lock compatibility: Quick-attach system lets you swap dildos without removing the harness, opening up endless exploration.
• Remote-controlled vibration: Multi-speed patterns and customizable intensity give the penetrating partner precise control over sensation.
• Adjustable harness: Neoprene construction with secure buckles fits a wide range of body types comfortably and safely.
• Body-safe silicone: Phthalate-free material is hygienic, non-porous, and easy to clean after every use.

Specifications

• Dildo length: 8 inches insertable; realistic girth for substantial sensation
• Harness sizing: Adjustable straps accommodate waists from 24 to 53 inches
• Material: Hypoallergenic silicone dildo; neoprene harness with reinforced buckle system
• Power: Rechargeable battery via USB; remote control with multiple vibration patterns
• Vac-U-Lock: Patented attachment point; includes powder dispenser for smooth connections
• Contents: Harness, 8-inch vibrating dildo, wireless remote, powder dispenser, storage bag, USB charging cable

How to use a strap on sextoy

Start by adjusting the harness straps so they fit snugly around your waist without pinching or slipping. Apply the included powder to the Vac-U-Lock attachment point—this ensures a smooth, secure connection. Press the dildo firmly onto the attachment until you hear or feel it lock into place. Power on the remote and select your desired vibration intensity. Use water-based lubricant generously on both the dildo and your partner's opening, then insert slowly, letting them guide the pace and depth.

Once you're both comfortable, the remote becomes your tool for communication and pleasure. Vary vibration speeds and patterns throughout penetration—some partners enjoy a slow build, others prefer consistent intensity. Experiment with different positions to find what feels best for both of you. The Sensuva On collection offers complementary products that can enhance your experience together. Always check in with your partner, adjust intensity based on their feedback, and remember that comfort and consent are paramount throughout.

Safety tip

Care and storage

Clean the silicone dildo and neoprene harness with a dedicated toy cleaner or warm soapy water after each use. Dry completely with a soft cloth before storing. Keep the harness and dildo in the provided storage bag, away from direct sunlight and heat, which can degrade silicone over time. Store the remote separately in a cool, dry place. Charge the battery monthly to maintain its lifespan, even if you're not using the harness regularly.

Learn more

Understanding your body and your partner's preferences makes strap-on play more satisfying for everyone involved. Communication, patience, and proper technique matter far more than speed or intensity. For deeper insight into partnered oral and penetrative techniques, read the Complete Guide On Deep Throating. This knowledge translates directly into better awareness of sensation, comfort, and pleasure across all forms of partnered sex.

Mistress Athena's training notes

By Mistress Athena — professional dominant and kink educator, sole instructor behind BDSM Australia's library of training videos. Read her full bio →

This harness has become indispensable in my practice. The remote control transforms vibration into a weapon of psychological dominance—I command sensation itself, leaving my submissive utterly dependent on my will. By varying intensity unpredictably, I keep them off-balance, never knowing when the next surge will arrive. Submission deepens when control is total, and this tool delivers precisely that.

The Vac-U-Lock system appeals to me because it allows rapid transitions between intensities and angles without breaking scene. My submissives respond intensely to the realism of the 8-inch dildo combined with the vibration—it's overwhelming in the best way. I've learned to use silence as much as sensation; switching the vibration off mid-scene often breaks a submissive faster than turning it up.

What I observe most is vulnerability. When a submissive wears this harness, they surrender control of their own arousal entirely. They cannot anticipate my next move, cannot touch themselves, cannot negotiate the sensation once it begins. That psychological architecture—knowing pleasure and denial are both mine to grant or withhold—creates the profound power exchange I seek in my training work.

See this and similar tools in action across my 300+ training videos on the BDSM Australia channel.

How it compares

Why you'll reach for it

Score the confidence that comes from knowing both partners are genuinely satisfied. The Vac-U-Lock Vibrating Sex Harness with 8 Cock Flesh delivers hands-free penetration, customizable sensation, and the flexibility to evolve your play as you grow together. Whether you're new to strap-on exploration or seasoned in partnered play, this harness offers real quality at BDSM Australia. Add it to your collection today and discover what genuine shared pleasure feels like. Service That Keeps Customers Coming Back.