If astronauts have had space sex, it would have been very difficult. First off, there isn’t much privacy up there. A regular shuttle is about as big as a 737, and the two main areas—the crew cabin and middeck—are each the size of a small office.
The bathroom is little more than a seat with a curtain, and there aren’t any closed rooms where two people could retreat.
The space station, on the other hand, has a little more room to operate. The three-person crew generally splits up for sleeping time: Two of them bed down in a pair of tiny crew cabins at one end of the station, and the third might jump in a sleeping bag at the other end, almost 200 feet away. (The panel-and-strap design of a space bed might not be that conducive to lovemaking.)
Astronauts also have a demanding work schedule, leaving them with little time or energy for messing around. Space-station crews do get time off on weekends, though, when they can watch movies, read books, play games, “and generally have a good time.”
But, would space sex be any good? Recent research suggests it would not. For one thing, zero gravity can induce nausea—a less-than-promising sign for would-be lovers. Astronauts also perspire a lot in flight, meaning sex without gravity would likely be hot, wet, and surrounded by small droplets of sweat. In addition, people normally experience lower blood pressure in space, which means reduced blood flow, which means … well, you know what that means.
Source:
Slate.com
