Contrary to what the linked page says, the HK vibrator is not made by Sanrio. Very little of the stuff is actually made by Sanrio. They simply license the images of the characters to the companies...but yes, the HK vibrator was licensed by Sanrio. I've got two of them, actually!
This is really an innocent toy or massage tool to be used for massaging the neck and shoulders. If you want to stick it in your kitty - well that is up to you, but it is a little small for that (-_-;)