Elvis Presley Volcano 

The Elvis Presley Volcano is a complex sexual technique as described by DarkestDay:

It is a fairly complicated move to pull off, but if you do it right, you will be A GOD. First, you need a condom, some vinegar, some baking soda, and a funnel.

So, you then convince your girlfriend to let you have anal sex with her. You put on the condom and put your wang up there, but while you are in there, you pull out but leave the condom in her rectal cavity. Then, you insert the funnel in real stealthy like so she thinks you are back inside her.

Then, you pour the baking soda in the condom, then, you pour the vinegar in. Then, you grab her ass and clench her ass cheeks together. If you do this right then you will effectively seal the vinegar and baking soda concoction in the condom, not letting it escape. Then, you grab her and shake her up. Then when she asks what you are doing you yell "I'M ALL SHOOK UP, UH-HU!!!!" and let go of her ass. The pressure that has built up in the condom (which is still in her rectal cavity) will be released and she will go hovering around the room.

The Elvis Presley Volcano:
"I'M ALL SHOOK UP, UH-HU!!!!"

Elvis Presley Volcano by From LUE May 15, 2006