A topic that's out of this world! Consider the possiblities, and then consider the problems.
Possible problems:
Gravity or the lack thereof. You might need special harnesses to tether yourselves to the wall and to each other, so that you don't detach from your partner during the act. Or, at the very least, you need acrobatic abilities, which might give you a chance to shine as you try to “choreograph” your sexual movements?
Also, what happens to all of those bodily fluids? Do they just fly right out? Is there a spooge-wall hanging out there? Of course, according to an earlier MSNBC article, a Romance/Cyberspace novelist believes that the increased perspiration in space will somehow be a bonus. Say what? I'm thinking that Bonta, the novelist in question , is smoking the not-so-proverbial crack-pipe. Since when is the idea of free-flying perspiration considered to be erotic?
She does, however, have a few valid points about the tragic possibility of penis shrinkage and then, about the difficulties of motion sickness:
"Although zero-G could be a boon for saggy body parts, Bonta said males might notice a "slight decrease" in penis size due to the lower blood pressure that humans experience in microgravity."
I don’t know about you, but most men I know would be terrified by the idea of a “slight decrease” in penis size. Why is that never mentioned on the cute NASA videos about people eating and hanging out in zero-gravity? Probably because no man would ever ever volunteer to go to space on any mission where there was a woman……
Space-sickness (aka Motion Sickness) would also tend to suck ass during the moment. There's nothing like a little puke to quell even the hottest of moments. I’ve been sea-sick with the double-whammy and couldn’t even imagine looking at another human being, let alone being intimate with one.
Human Nature and the Future of the Human Race
A Wired Article makes a very different point, claiming that people in Space are going to have sex with each other, regardless of who they are or the differences they may encounter. The same way people on a ship or in prison will, simply as part of human nature.
Both articles further speculate how sex in space will shape the future of the next frontier, space colonization. It’s difficult for me to imagine, but somehow or another, the future of the human race (when the Earth is no longer inhabitable and we need to find another place to live) may very well depend on it.