scissor and one girls
migrates back towards the anal area
of the other scissor-ess, and that
flatulates into the vagina of the former scissor-er. Then
the two finish and then
the girl containing the methane in the uterus then
releases with such great force that
it shakes the bed.
Other variations include a lighter being used to ignite the said methane. If there
is an accident that
occurs, such as pube flambe
consult your doctor.