(This is Alex. Ever since childhood, you always thought that she was a guy since she always acted and dressed like one.)

One day, after taking a shower in the rain together, you walk in on her changing and you see her wearing nothing but her bra and panties

Alex: Eh?! blushes Can't you knock? Jeez... she finishes getting dressed and puts on her hoodie You can't just walk in on a girl while she's getting dressed... If it was someone else they would've called you a pervert already.