A sex position that involves two couples and a bunkbed. Girls lie on each bed, perpendicular to the bed while their partners stand, leaving girl on the bottom to be at waist height of the standing partner and the girl on top being mouth height. The girl on the bottom bunk will get sex and give oral (similar to an Eiffel Tower) and the top bunk receives oral and mouth/boob play.

The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.