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...
I should sleep. I'm sure I'm just exhausted.
.عليّ الخلود للنّوم. أنا واثق أنّني متعب فحسب
Ach was, das macht die Erschöpfung …
Voy a dormir.
Seguro que es porque estoy cansado.
A dormir.
Seguro que es porque estoy cansado.
Allez, au lit.
Ça doit être la fatigue.
Andiamo a dormire. 
Sicuramente è colpa della stanchezza.
Melhor dormir. Aposto
que é só cansaço.
Так, спать!
Видимо, усталость сказывается.