Um, some people really get off on anal stimulation. These particular butt plugs have a weight. They're very, um, smooth and heavy, so they give a lot of sensation. And the reason that the little stem is so thin is because these are meant to be worn out and about, like, in public, under clothes, and to be kept in for, you know, like, random stimulation while you're out walking around. So you never know when you run into somebody, girl or guy, they could literally have a butt plug in.