Creating a natural feeling in a sex doll involves several key features that enhance realism. First, high-quality skin materials like silicone or TPE replicate the softness and warmth of human skin. Second, detailed facial features with expressive eyes and realistic hair contribute to lifelike aesthetics. Third, flexible joints and an articulated skeleton enable natural posing and movement. Fourth, internal structures that mimic muscle tone and weight distribution enhance the sensation of interaction. Fifth, skin textures and creases add depth and authenticity to the surface. Sixth, temperature regulation systems simulate body warmth, increasing comfort and realism. Seventh, embedded scents or scent emitters can evoke natural body odors, heightening sensory experience. Eighth, realistic fingernails, eyelashes, and textured orifices provide detailed tactile feedback. Ninth, customizable facial expressions and voice responsiveness (in advanced models) make interactions more genuine. Tenth, balanced weight and ergonomic design ensure the doll feels natural in hand and during use. When these features are integrated effectively, they combine to produce an experience that closely resembles real human intimacy, providing users with a satisfying and authentic connection.