Eh... Surely Rei inspected Fumino's cl*toris before, right? How could she just said it like it was castrated, balls and shaft? Is it her way of hiding her gender?
Oh well, who cares about the plot. This dumb me better care about the other plot instead~
Imagine recruiting Seiran's first and second most wanted into the FS at the same time. Rei and the SCP deserve tickle correction just as much as Wata-chan did!