The act of the male recipient laying on his back with his erected penis in the air. The female recipient then sits down on the throbbing cock causing penetration of the penis in the vagina. The male recipient then yells, "Start your engines!", while the female does repeaded 360 turns around the male body, resembling a helicoptor.
Deb and I were hoping to do some kinky shit on our anniversery, but after we did the Houston Helicoptor the dumb bitch broke up with me!