XTC Japan - Step-Sister's Secret Relation Dual-Entry 3D Masturbator (Beige)

XTC Japan Step-Sister's Secret Relation is a substantial dual-entry 3D masturbator built for users who want two different tunnel experiences in one weighted body. One side presents a vaginal-style entrance with a multi-zone internal texture, while the second offers a narrower anal-style opening with a curved path and firmer surrounding pressure.

The approximately 2.2 kg TPE body measures about 19 cm long and 18 cm wide, giving it enough mass and surface area for a stable, immersive setup. Its dual-layer construction pairs a softer, skin-like exterior with a firmer internal structure, so the body remains squeezable while the tunnels provide more defined resistance.

Because it is entirely manual, the user controls every variable—position, depth, stroke length, pace and squeeze pressure—without a motor or preset programme. The two openings make it possible to switch sensation during a session without changing products.

Why You’ll Love It

• Two functional openings with distinct vaginal-style and anal-style tunnels
• Dual-layer TPE construction balances a softer exterior with firmer internal resistance
• Approximately 2.2 kg body weight supports a steadier, more substantial setup
• Approximate dimensions of 19 cm long by 18 cm wide
• Sculpted 3D body provides broad grip points for controlled positioning
• Manual, non-vibrating design keeps pace and pressure fully user controlled

1. Place the masturbator on a clean, stable and lubricant-safe surface, or support it securely with both hands.
2. Inspect and clean both openings before first use.
3. Choose the tunnel you want to explore and apply generous water-based lubricant to the opening and to yourself.
4. Enter slowly with shallow movement, allowing the TPE to stretch gradually.
5. Adjust angle, depth, stroke length and external squeeze pressure to suit your comfort.
6. If switching openings, add fresh lubricant as needed; after use, clean both tunnels even if only one was used.

• Wash both tunnels before and after every use with lukewarm water and a cleaner suitable for TPE.
• Rinse thoroughly until all lubricant and cleaner residue is removed.
• Drain and air-dry both internal channels completely before storage.
• Use water-based lubricant unless XTC Japan specifically confirms another type is compatible.
• Lift and reposition the 2.2 kg body with adequate support rather than pulling on a tunnel opening or narrow edge.
• Store flat in a cool, dry place, separated from other soft toy materials and protected from heat and direct sunlight.

Is it suitable for beginners?
It can be, provided the user is comfortable handling a 2.2 kg product. Beginners should use plenty of lubricant, start with the vaginal-style tunnel and keep the first movements shallow and slow.

How are the two tunnels different?
The vaginal-style tunnel uses a broader multi-zone texture, while the anal-style tunnel is narrower and follows a more curved path for firmer, more concentrated pressure.

Does it vibrate or move automatically?
No. It is a fully manual masturbator with no motor, battery or electronic controls.

Will the product stay in place on its own?
Its 2.2 kg weight supports stability, but performance depends on the surface and position. Keep it supported and avoid assuming it is fixed or hands-free.