Star Trek: 10 Starfleet Rules You Never Knew Existed

No doubt thanks to Kirk's many exploits during The Original Series, Starfleet actually had medical guidelines on the proper way to have sex with aliens.

The Voyager episode The Disease gave us possibly the worst Harry Kim love story in the entire series (and that's really saying something). In it, Harry contracted a mysterious glowing skin disease from messing around with an alien aboard a generation ship. The disease made him fall more and more in love with her to the point where being away from her gave him withdrawal symptoms.. Super corny, but what's kind of hilarious is watching Kim get in trouble for not following proper Starfleet alien sex etiquette.

After he started noticing his symptoms, he was forced to admit to The Doctor that he slept with the alien Tal, violating an unnamed Starfleet protocol that stated 'All Starfleet personnel must obtain authorisation from their CO as well as clearance from their medical officer before initiating an intimate relationship with an alien species.'

What this basically means is that all because Kirk got a little too carried away in the bedroom, now everyone in Starfleet has to get permission from their boss and their doctor before they can get freaky with a newly discovered form of life. All this is to prevent horror stories like we've seen in The Disease, and also the episode Unexpected from Enterprise, which introduced sexually-transmitted alien hand nipples, one of the many possible risks of making first contact on a first date.