sharp Evening stars and bright Morning flame

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A sedoretu is a four-person marriage, an intricate mesh of six dynamics - sexual and non-sexual - between Morning man, Evening woman, Morning woman, and Evening Man, a bond of delicate trust.

When Steve Rogers makes Bucky Barnes a promise at age sixteen, he doesn't know that he'll be keeping it at age ninety-six.

When Bucky Barnes meets Natasha Romanoff in the course of their work with the Red Room, he won't remember her for another seven years.

When Natasha Romanoff encounters Maria Hill in SHIELD, she isn't thinking of desire or fondness, only of trust - and that it's the first time she's been allowed the choice.

When Maria Hill seduces Steve Rogers, she can't imagine the fall - but love is more than sex and emotions, a hard and sometimes lonely road to walk.

When a sedoretu consists of Captain America, the former Deputy Director of SHIELD, the Black Widow, and the Winter Soldier, things are bound to get downright complicated.


(Graphic by flipflop_diva for the Marvel Big Bang 2016
AO3 masters: cassandrasfisher | flipflop_diva)

Society is divided into two moieties, called (for ancient religious reasons) the Morning and the Evening. You belong to your mother’s moiety, and you can’t have sex with anybody of your moiety. There are also individuals without moiety, who can have sex with either moiety.

The sedoretu is a foursome marriage - a man and a woman from the Morning moiety and a man and a woman from the Evening moiety. You’re expected to have sex with both your spouses of the other moiety, and not to have sex with your spouse of your own moiety. So each sedoretu has two expected heterosexual relationships, two expected homosexual relationships, and two forbidden heterosexual relationships. Non-moiety people may join in sedoretu marriage with moiety individuals, but the expected and forbidden relationships must be preserved.

The expected relationships within each sedoretu are:

The Morning woman and the Evening man (the “Morning marriage”)
The Evening woman and the Morning man (the “Evening marriage”)
The Morning woman and the Evening woman (the “Day marriage”)
The Morning man and the Evening man (the “Night marriage”)

The forbidden relationships are between the Morning woman and the Morning man, and between the Evening woman and the Evening man, and they aren’t called anything, except sacrilege and blasphemy.

It’s just as complicated as it sounds, but aren’t most marriages?

This is the story of the sedoretu marriage between Natasha Romanoff | Maria Hill | Steve Rogers | Bucky Barnes.


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