It is better to just stick to the objectives of going to space, and not lose yourself in carnal pleasures as it can be highly detrimental to health.

Plant studies showed that changes in gravity, whether weak or strong can adversely affect the development and functionality of the pollen tube, and it can have the same effect in humans. The clogging effect can negatively impact reproduction processes in humans.
"Our findings have implications for human health as similar effects are likely to occur in human cells such as neurons where long distance intracellular transport is crucial," said Dr Youssef Chebli, a co-researcher in the study.
Source-Medindia