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...
Why don't we head to bed after we clean up?
لماذا لا نخلد للنّوم مباشرة بعد تنظيف المكان؟
Wollen wir aufräumen
und dann schlafen gehen?
Acabemos de recoger y descansemos.
Vamos a acabar de recoger y a descansar.
Allons au lit
après avoir débarrassé.
Finiamo di rassettare e andiamo a dormire?
Que tal arrumarmos
tudo para dormir?
Давай приберёмся — и в кровать?