Hale Bopp Comet
A rare sight, seen only once every 4200 years - when a guy is having sex while lying on his back, at the point of climax he pulls out, and his cum shoots with such velocity it shatters the lightbulb above the bed, showering down a comet of hot glass.
I performed a Hale Bopp Comet so hard last night, a team of astronomers are already saying they'll never see a better one in their lifetime.