Something came to me a moment ago, I saw my diving equipt and grabbed my snorkle. The bend where it goes into your mouth makes a nice handle. I lay back on the bed and used the tip and shaft of the snorkle to slide between my legs ,rubbing my anal lips, sliding the snorkle up and down it....mmmmmmmm, remember it works best to be wearing some thin covering like silk panties. The feeling is incredible.