Achieving realistic oral and vaginal features in sex dolls involves meticulous attention to detail and advanced materials. For oral features, manufacturers focus on creating natural-looking lips, a flexible tongue, and soft, textured interior surfaces that mimic the sensations of real oral intimacy. Some dolls incorporate removable or customizable mouth inserts to enhance realism and hygiene.

Vaginal features are designed with textured interiors that replicate the feel of human tissue, including folds, ridges, and warm, moist sensations. High-quality silicone or TPE (thermoplastic elastomer) materials are used for their softness and durability, providing a lifelike touch. Internal mechanisms, such as flexible or movable parts, allow for natural positioning and movement during use.

In addition to physical design, some dolls feature heating elements to simulate body warmth, further enhancing realism. The combination of detailed internal textures, realistic materials, and temperature control creates an experience that closely resembles real intimacy.

Choosing a doll with these features requires careful consideration of material quality, internal design, and maintenance needs. When well-crafted, these realistic features significantly elevate the sensory experience, making interactions more authentic and satisfying.