In most cultures around the world, marital fidelity has always been considered an essential moral norm, the violation of which was perceived as a serious offense. However, throughout human history, there were people whose views differed—and had quite rational reasons.

For example, some northern ethnic groups, such as the Chukchi and Koryaks, had customs in which hospitality could include not only treats and overnight accommodations but also attention from the hostess. This behavior was not perceived as infidelity or disrespect for the spouse. On the contrary, it was a manifestation of trust, openness, and respect for the guest.

The main goal of such traditions was to strengthen friendly ties between tribes and renew the bloodline, since in the harsh conditions of the North, closed communities often faced the problem of inbreeding. Therefore, the possibility of having a child from a member of another community was considered a blessing: it promised healthy offspring and a stronger lineage. If a woman actually became pregnant after a guest’s visit, this event was perceived as joyful news, not a cause for condemnation. The community believed that the child would inherit the strength and vitality of both peoples.

Similar forms of so-called “sexual hospitality” were found among other peoples of the world, usually among those who lived in isolated areas and sought to maintain the health of their clan and good relations with their neighbors.