Methinks Rei is fibbing to some extent, because it's strange that she's completely nude while Policewoman(?) still has her underwear on.
She woke up naked, she presumably just put on some clothes in between shouting.
Whaaaaat!?Eh?Eh?Don't tell me you're hurt by that?When we were doing it,The sound of us having s*x.No...You would sometimes moan so loudly.Like "Uwaaan! Uwaaan!".It was surprising.The sound echoed across the inn, I'm sure everybody must've heard it.Moan?Like the shriek of an animal!
