Hah, Kanda is so good of a catch in terms of both looks and personality that Ookuma doesn't even think twice of flagrantly breaking her upbringing as a "good" girl just to confirm whether or not Kanda's claim of being a girl is true fast enough to have enough time for a kiss before Christmas Eve ends.

In other words, Ookuma is mainly motivated by disbelief that she mistook Kanda's sex for so long rather than any hangups about having fallen in love with someone of the same sex (to be fair, there's what she said in post #3668842).

This took a wierd (but good) turn

Glorious success

This is the equivalent of tripping over a railing and sticking the landing with a dramatic roll and presenting a rose at the end.