She said it was a joke, but I didn't think it would get this out of hand.
Yesterday she told me to come over in the morning, so she could show me something that she saw online. When I arrived she brought me up to the roof, where she pulled out a large gas tank and a hose with an elastic loop around the end. She urged me on to put the hose in my mouth, the strap keeping it in place, after which she would fill me with gas. As a joke, she repeated. I thought it was strange but it seemed innocent enough, so I did as I was told.