Sexual act with
on top. The female
does a split and inserts lubed penis into vagina. The male then
grabs hold of the female
's legs and spins her around rapidly, similar to that
of a helicopter's blades.
Has a high failure
rate, roughly 100%. Failure
results in Female
either falling over or vomiting, and Male
Theoretically, a successful
helicopter, if done fast enough, could
generate lift for the female
for about 2 seconds. There have been 3 reported cases
of success, but they
were all in Japan so you never know.