My experience with the jelly type - apparently I am allergic - get a burning sensation. Also, it seems to soak up lubricant (and my natural lubricant) so we would use lots more than usual, or have to use it when we normally wouldn't. I finally asked that the jelly toys be retired - my husband suggested selling them in a garage sale! I can just see the little old ladies asking "What do you use this for, dear? Will you take fifty cents for it?"