Last time I was in a topic like this on HN, there was a discussion about whether a mission could have as its mission parameters a part where they just send people willing to entirely abstain from sexual relationships - whether this could possibly be a pragmatic thing for early exploration-oriented pioneering missions where people are likely to die on Mars anyway.
Or rather, it started pragmatic, but it turned into a bit of a culture-wars clash immediately (apparently some people feel quite strongly about humans abstaining from sex), and honestly, if any US or European space program did the same, they'd have to deal with the fallout, so... it may not be the best plan.
We can just send couples with a contract to have sex regularly. I am sure many people are willing to subscribe to that and professional attitude should guarantee to fulfill the contract even if negative sentiments start to set in at some point. Afterall such contracts were common throughout the history and people did just fine.
Can you provide some references for the things your suggesting here? I've never seen any mention of this sort of thing in any of the history material I've read.
Or rather, it started pragmatic, but it turned into a bit of a culture-wars clash immediately (apparently some people feel quite strongly about humans abstaining from sex), and honestly, if any US or European space program did the same, they'd have to deal with the fallout, so... it may not be the best plan.