Pleasure Enhancer by Sono

Anal play requires the right tool—one that stretches gradually, stays secure, and feels comfortable during extended wear. The SONO No. 12 Butt Plug 4 delivers all three, with a tapered design and flared base built for advanced users ready for deeper penetration.

What it is

The SONO No. 12 Butt Plug 4 is a hand-inserted anal toy engineered for experienced users seeking substantial penetration and prolonged wear. Its medical-grade silicone construction is non-porous, hypoallergenic, and smooth—qualities that make insertion gradual and comfortable. The plug's tapered shape stretches the anal opening progressively, while its flared base prevents over-insertion and sits securely against the body. This design is especially suited to submissives exploring advanced anal training or power exchange dynamics.

What sets this plug apart is its graduated taper and precision engineering. Most entry-level plugs feel blunt; this one guides the body through a natural stretching progression. The silicone surface is dense enough to hold its shape during extended wear, yet forgiving enough for relaxed insertion. See the full BDSM Australia range of Butt Plugs to compare entry-level and advanced options side by side.

Key features

• Graduated taper: Begins at 0.75 inches and expands smoothly to 1.25 inches maximum, allowing the anal opening to stretch gradually without shock or discomfort.
• Flared base: Sits securely against the body and prevents the plug from traveling too far inside, making it safe for extended wear during scenes or training.
• Medical-grade silicone: 100% body-safe, non-porous, and hypoallergenic, with a smooth surface that resists bacterial growth and cleans easily between uses.
• Manual insertion: No batteries, motors, or electrical components—just precise control over depth, pace, and duration, making it ideal for power exchange and obedience training.
• Versatile for BDSM: Works as a standalone training tool or integrates into restraint scenes, humiliation scenarios, and extended wear protocols.

Specifications

• Dimensions: 4 inches total length; tapers from 0.75 inches at the tip to 1.25 inches at maximum width; flared base extends approximately 0.5 inches beyond the widest point.
• Weight: Approximately 3.2 ounces, providing balanced handling and comfortable insertion without excessive heft.
• Material: 100% medical-grade silicone, non-porous, hypoallergenic, and free from phthalates or other harmful chemicals.
• Waterproof: Fully submersible for cleaning and temperature play; safe for warm or cool water exposure.
• Included: SONO No. 12 Butt Plug 4, discreet storage bag, water-based lubricant sample, and cleaning instructions.

How to use a butt plug

Start by washing the plug thoroughly with mild soap and warm water. Apply generous water-based lubricant to both the plug's surface and your anal opening. Relax your body, breathe slowly, and position yourself comfortably. Guide the tapered tip to your opening and begin inserting slowly, allowing your muscles to relax around the expanding shape. Once the widest point passes through, the flared base will settle securely against your body. Stop if you feel sharp pain; mild pressure and fullness are normal sensations.

For extended wear, adjust your position gradually and move at your own pace. Some users enjoy wearing the plug during other activities to deepen sensation and awareness. If you're new to larger plugs, begin with shorter sessions and build duration over time. When removing the plug, relax completely and push gently as though having a bowel movement; this eases the plug out without strain. Explore how Tunnel Plugs offer alternative sensations if you want to vary your anal play experience.

Care and storage

Wash the plug with warm water and mild antibacterial soap after every use, paying special attention to the base and any creases. Rinse thoroughly and air dry completely before storage. Store in the provided bag away from direct sunlight and extreme heat, which can degrade silicone over time. Inspect the plug regularly for cracks, tears, or sticky patches, which signal damage. Keep separate from other toys to prevent material transfer.

Learn more

Understanding the difference between anal plugs and prostate massagers helps you choose the right tool for your goals. Plugs focus on anal fullness and training, while massagers target internal pleasure through vibration or pressure. Read more about how these tools differ and which suits your practice best by visiting Anal Plugs Vs Prostate Massagers.

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 →

The SONO No. 12 Butt Plug 4 has become one of my most trusted training instruments. Its graduated taper allows me to stretch a submissive's limits progressively—something I leverage during multi-week protocols to expand their capacity. The flared base ensures the plug stays exactly where I place it, giving me confidence during extended scenes. My submissives report that its smooth silicone creates a sense of being filled without sharp edges or discomfort, which allows them to focus entirely on their submission rather than distraction.

What I observe most consistently is the psychological shift that occurs when a submissive wears this plug during everyday tasks. They become hyperaware of their body, their posture, their breathing—all heightened by that constant pressure and presence. I've used it during punishment scenes to amplify humiliation, during reward protocols to deepen intimacy, and during group training to establish visible markers of ownership. The plug's weight and security mean submissives can wear it for hours without slippage, making it perfect for long scenes or protocols requiring sustained control.

One technique I particularly favour involves temperature play—warming the silicone under warm water before insertion intensifies sensation and relaxation, while cooling it creates a contrasting shock. The plug's density holds temperature well, making this accessible and effective. I've found that pairing this tool with specific protocols—having a submissive wear it only on certain days, or only during particular tasks—creates powerful psychological anchoring. Over time, even the sight of the plug can trigger submission in my trainees.

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

Grab the SONO No. 12 Butt Plug 4 when you're ready to deepen your anal training and expand your capacity with purpose. Its tapered design and secure base make it the go-to choice for submissives and dominants alike at BDSM Australia. Order now and experience the precision engineering and control this tool delivers every time you use it. Australia's BDSM Specialists for Over 15 Years.