Original Commentary
Certain details? Kimberly didn't know Brisbane was there.

Modern Commentary
If you haven't read Unlike Minerva recently:
Brisbane and Kimberly went out on a kinda-date. They ended up staying out much later than expected. The Minerva Theatre, where Brisbane lived, was locked for the night so he crashed at Kimberly's apartment, sleeping on her couch. During the night, he moved to her bathtub. So in the morning, she went to take a shower, he was there, and might have seen her naked.
That sounds so manga when I write it out, and not in a good way. Might have been influenced by early College Roomies from Hell when Roger gets stuck sleeping in the tub.
But it, perhaps, is an awkward moment they can look back on fondly at some point in the future- Terrence