This scene is from:
First Truths
By:
Lilac Summers
You can find it at:
HERE!!!

"Maybe this is a dream. Yes, this is
a dream. See? I'm here, in a lingerie
store, wearing a gold teddy, watching
Usagi-chan kiss Mamoru-san like there's
no tomorrow. Any minute now a high
school marching band is going to walk
through the store and a giant cake
will appear out of nowhere and I'll find
myself naked in the middle of class.
A dream. Has to be." Content with her
analysis, Minako looked wildly around for
the entrance of a marching band.