In order to prove to Yuri that they are actually a married couple, Loid and Yor are supposed to kiss. Loid is willing to get this done immediately for the sake of Operation Strix, but Yor can't do this sober, so she ends up downing a bunch of wine and gets drunk.  Yuri sees his sister this way, also gets drunk, and is unable to make rational decisions anymore...
And he's part of the secret police, 
my greatest foe as a spy.
،كما أنّه جزء من الشّرطة السّرّيّة
.أكبر عدوّ لي كجاسوس
Und dann gehört er auch noch zur
Geheimpolizei, dem Erzfeind der Spione.
Y además es policía secreta,
el peor enemigo de un espía.
Y encima es policía secreta,
el peor enemigo de un espía.
Et c’est problématique
qu’il soit de la police secrète.
Per di più, appartiene alla polizia segreta,
il peggior nemico di noi spie.
E ele é da polícia secreta,
meu maior inimigo como espião.
Вдобавок работает на врагов шпионов —
тайную полицию.