Sex is banned in space.
Alan Poindexter, a NASA commander who was speaking while on a visit to Tokyo, revealed getting it on is a big no-no for astronauts visiting the International Space Station.
He said: "We are a group of professionals. We treat each other with respect and we have a great working relationship.
"Personal relationships are not an issue. We don't have them and we won't."
Mr Poindexter and his six-man crew made a landmark journey in April when they put four women in orbit at one time, with three female members of the mission joining one woman who was already based at the International Space Station.
