The Advantage of a Penetrable Mouth
The advantage of a penetrable mouth is that you can choose and alternate between multiple types of stimulation. This simply gives you more options, variety, and the ability to switch things up during use. This way, you become less accustomed to any one form of stimulation and are less likely to get bored with a sex doll.
The Disadvantages of a Penetrable Mouth
A penetrable mouth is often not very deep because there is simply less space in the skull of the sex doll. The entrance usually does not extend beyond 12 centimeters; much more is not possible because the head often does not have a diameter larger than 20 centimeters, and space is needed for the skull and neck construction.
Another disadvantage is that the channel of the penetrable mouth is angled upwards. This is because the channel cannot point straight back due to the neck construction (with the bolt) placed there. The mouth channel must go over this.
The final disadvantage is that a penetrable mouth on sex dolls is somewhat harder to clean. With a vagina or anus, water can drain out easily, but with a mouth, it’s more difficult because the water tends to run down along the rest of the body.
Misconceptions About a Sex Doll Mouth
The biggest misconceptions people have are also the biggest disadvantages. People often think the channel points straight backward. However, the mouth channel points diagonally upward toward the brain.
Another misconception is that the channel is deeper than expected; the channel is almost always shorter than the length of the vagina and anus.

How Deep Is the Mouth on a Sex Doll?
The depth of the channel ranges between 12 and 15 centimeters depending on the brand of the sex doll and the design.
What Is a Sex Doll Mouth Made Of?
A sex doll mouth is often made from the same material as the rest of the doll, namely TPE, silicone, or another type such as STPE.
How Do You Use the Mouth of a Sex Doll?
You use the mouth of a sex doll in the same way as the vagina and anus. Keep in mind that the mouth is more compact, the channel often runs upward, and the face often contains delicate makeup, eyelashes, and eyes. It is therefore especially important to be careful and not force the length and space inside the mouth too much. This ensures that after penetrating the mouth, you do not irreparably damage the face or completely distort the makeup.
