It's the night before the Mai High Festival.  Keima and Chihiro are alone on the roof of the school.  Chihiro seems confused by Keima's behavior, but he continues with his conquest.  But as Keima makes his move, Chihiro says something unexpected.
Might as well see what else you can do.
Bien podría ver qué más puedes hacer.
Ya que estamos, podría ver 
qué más puedes hacer.
Agora que começamos, vamos até o fim.