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...
There is no way I can do this sober.
.مستحيل أن أقوم بهذا وأنا لست ثملة
Nüchtern geht das einfach nicht.
No podré hacer esto sobria.
No voy a poder hacer esto sobria.
Sobre, c’est impossible.
Non ce la posso assolutamente fare da sobria!
Não vou conseguir
fazer isso sóbria.
Без рюмки я этого не вынесу!