An artificial vagina is a device designed to imitate the female sex organ. To achieve this, it will generally be made of a soft material, lubricated, and sometimes heated. An artificial vagina for the purposes of sexual stimulation is essentially an aid to human masturbation; and is also known as masturbation aid, masturbator, or pocket pussy. It is designed to simulate the sensation of sexual intercourse on the erect penis and to induce orgasm and ejaculation.
The final thing, is that it is also hypoallergenic, and that means that you won’t’ get allergic to it. With some people, they are unfortunately allergic to silicone, which can be a problem over time. You might want to consider this if you know that you have a silicone allergy and you still want a sex doll, since it can help alleviate this problem if you do have it.

Now, TPE stands for thermoplastic elastomer, which is essentially a mixture of polyvinyl chloride and silicone. This is a type of skin that is very soft, and it mimics the feeling of human skin. TPE is way more realistic in feeling and it definitely mimics the feeling of human skin. It also is much cheaper than silicone alternatives, sometimes even hundreds of dollars cheaper. TPE also allows you to move the doll around in various ways, since it has more flexibility. TPE dolls don’t really need to be bathed, but you can, just be mindful of the water. It also is hypoallergenic as well. 
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