Even if you ignore the two sex scenes that do show up (which are in context and in character), the story itself is wonderfully written and executed. Not only are both characters portrayed well and IC all throughout, their relationship is also emphasized to even include a possible explanation as to why they still seem to act like a married couple long after 1918. Namely that they had a second wedding as Roderich and Elizaveta not long after their "official" one.
FanficRecs Comment by msq
Even if you ignore the two sex scenes that do show up (which are in context and in character), the story itself is wonderfully written and executed. Not only are both characters portrayed well and IC all throughout, their relationship is also emphasized to even include a possible explanation as to why they still seem to act like a married couple long after 1918. Namely that they had a second wedding as Roderich and Elizaveta not long after their "official" one.