Tanaka is very oblivious when it comes to love. That said, Ueno's methods can safely be described as extremely unconventional.
If she's already had some, 
that should be enough, right?
،إن كانت شربت بعضه
فذلك يكفي، صحيح؟
Sie hat’s getrunken,
dann muss ich ja wohl nicht mehr.
¿Para qué? Ya bebió ella.
¿Para qué? Ya ha bebido ella.
Ben du coup, c’est plus la peine…
Se l'ha già fatto lei, dovrebbe bastare, no?
Se ela já provou,
deve bastar pra você, não?
Может, проверки на ней было достаточно?