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...
You should come when my 
daughter's awake next time.
وعليك المجيء عندما تكون ابنتي 
.مستيقظة في المرّة القادمة
Nächstes Mal gerne,
wenn unsere Tochter wach ist.
La prossima volta passa 
quando mia figlia è ancora sveglia.
Da próxima, venha quando
minha filha estiver acordada.
И загляните, когда дочка
ещё спать не будет.