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...
We don't have to do this 
if you don't want to.
.لسنا مجبرين على فعل هذا إن لم تريدي
Du musst dich nicht dazu zwingen.
Si no quieres hacerlo,
no hace falta forzarlo.
Si no quieres, tampoco hay que forzar.
Tu n’as pas à te forcer.
Non sentirti costretta a farlo, se non vuoi...
Não precisamos
fazer se não quiser.
Если не хочешь,
то не заставляй себя…