I used the massager through another material, like my underwear or an empty pillow case, so that the PVC would not come in contact with my skin. This was partially to help muffle the vibrations, and make the toy easier to use, but also to keep myself safe!
Because the toy is not meant for "intimate" use, I would not recommend it to be someone's go to vibrator. Even though it gets the job done. Hope this helps!