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...
Well, anyway. I'm glad he didn't find 
out about our pretend marriage.
على أيّ حال، أنا سعيد لأنّه لم يكتشف 
.أنّ زواجنا زواج مظاهر فحسب
Und letzten Endes
ist unsere Tarnung nicht aufgeflogen.
Me alegro de que no haya descubierto
que somos un matrimonio falso.
Me alegro de que no haya descubierto
que somos un matrimonio falso.
Bref, ça me rassure
qu’il ait cru à notre mariage.
A ogni modo, è un sollievo che non abbia scoperto 
che siamo una coppia solo sulla carta.
Enfim, fico feliz que ele não tenha
descoberto o casamento de fachada.
Как бы то ни было,
главное, что он не раскусил наш фарс.