In July, Dr Jason Kring, who works as an advisor at NASA, called for the agency to get the astronauts ready for sex in space. He said that a trip to Mars would last about three years and there's little chance that men and women working in the same team will not think about sex. Currently the space agency doesn't say anything about sex in space. However, for about 20 years mixed crews have performed missions in space and even a married couple flew on the US shuttle back in 1992.

There were rumors in the Soviet Union that Russian female astronauts...

http://www.infoniac.com/science/sex-in-space.html

Going where many, many men have gone before in space... could be a lot of fun.

Gives new meaning to the mile high club

3 years without sex?
Fuck that!!!