The inside of a stroker features a textured canal that stimulates the penis while the outside is often ridged to ensure a good grip during use. In other projects Wikimedia Commons. This is less of a concern with artificial vaginas made from silicone , which, while generally more expensive, is non-porous and can be disinfected after cleaning with a bleach solution or heat. Masturbators are sometimes used for medical research. Gender binary Gender identity Men who have sex with men Sexual identity Sexual orientation Women who have sex with women. For the creation of a vagina through surgery, see Vaginoplasty. History of masturbation Sexual revolution Religious views Masturbation in non-human animals. Some kinds of vibrating artificial vagina are designed effect, replicating the role of a penis pump—with a bulb squeezed by the user. Usually the artificial vagina has a realistic or close to realistic appearance with a sleeve, where the penis can be inserted.
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