Star Trek: Voyager Rewatch: "The Disease"
Stardate: unknown Captain’s log. Voyager has spent the last two weeks helping out the Varro. A very xenophobic people, they’ve been living on a massive, segmented generation ship for four centuries. They only very reluctantly have accepted Voyager’s offer of help because their warp drive is offline and they can’t fix it. Kim and one of the Varro, an engineer named Derran Tal, have been carrying on an illicit affair. This is violation of both sides’ regulations. Starfleet requires medical clearance and approval from the captain before getting into a liaison with a new alien species ...
Source: tor.com