Most sex doll manufacturers and retailers offer a wide range of custom sex dolls to suit the aesthetic tastes and interests of different users. Customization options often include, but are not limited to, breast size, nipple color, pubic hair style, hair color and length, eye color, oral structure, etc. High-end customization can even extend to fingernail color or fingerprints.

Sex dolls are high-priced and highly personalized products, and it is industry standard practice to offer customization options to suit each customer's needs and tastes. Pregnancy shape is just one of many potential options. In fact, different users may be attracted to different shapes of pregnancy, which is where customization comes into play - allowing everyone to design a sex partner that matches their ideal preferences.