Mythology Cobi Onyx silicone dildo with penis and testicle rings

Starting gently, you'll see that this model offers a unique approach: a classic anal plug enhanced with integrated cock rings. The idea is shared stimulation—anal for one partner, penile for the other, or both areas at once during solo play. The ultra-soft silicone absorbs movement without rigidity, making insertion gradual and comfortable.

Ultra-soft silicone and suitable flexibility

The material used here is standard-quality silicone—not certified medical-grade silicone, but a formulation that remains soft to the touch and flexible. I would place this product in the “accessible entry-level” category rather than the “clinical high-end” category. The glossy black finish gives it a sophisticated look, and the smooth texture makes cleaning easy. Before each use, rinsing it with warm water and mild soap is more than enough.

Dimensions and size for beginners or exploration

Here are the factual specifications: total length 15.5 cm, insertable length 13.5 cm, diameter 2.8 cm. This size is a middle ground—neither too discreet nor intimidating. For someone beginning anal stimulation, it offers a logical progression. For an experienced user, it is a comfortable size for couples’ play. The integrated rings (3 cm for the penis, 5.5 cm for the testicles) add light pressure without excessive constriction.

Couples’ use and compatible lubricant

The main appeal of this model is its versatility. You can use it alone for purely anal stimulation, or with a partner for simultaneous vaginal and anal penetration (the penis ring is positioned around the partner’s penis). Honestly, this setup works best with a good-quality water-based lubricant—this is non-negotiable for comfort and safety. Avoid silicone- or oil-based lubricants, which can degrade the silicone over time. During shared use, a condom is recommended to reduce the risk of bacterial transmission between areas.

Key features and benefits

• Flexible and adaptable to individual anatomy
• Integrated cock rings for shared stimulation
• Soft silicone, easy to clean with water and soap
• Compact size, discreet to store
• Ergonomic design for gradual insertion

To explore anal stimulation or couples’ toys further, I recommend consulting our complete beginner’s sex toy guide, which details precautions and compatible lubricants. You’ll also find other options in our couples’ sex toys or our selection of silicone plugs.

Who it’s for and who it isn’t

Who it’s for: Couples seeking anal stimulation integrated into penile play, people beginning anal penetration, and users looking for a standard-sized option without electronics. This product also suits those who appreciate simplicity—no battery, no electronic maintenance, just silicone and lubricant.

Who it isn’t for: If you’re looking for very intense stimulation or an XXL size, this may feel moderate. If you prefer electronics and vibrations, explore our vibrating plugs. If you have sensitive skin or a history of allergies, I recommend checking the full composition with the supplier—this silicone is not certified “medical-grade.”

Friendly tip— Begin with an exploratory session using plenty of lubricant and taking your time. The cock rings should never pinch—they should slide comfortably. If you feel discomfort, you need more lubricant or a slower pace.