She just moved into the apartment building. New building, new city, new job. When she takes her first shower she realizes it's not just her that can sing; the neighbor can supply a much needed duet partner.
The co-ed bathrooms in the old unused athletic building are always empty, that's why Sarah likes them.
She comes here every evening after dance practice to shower and listen to her music in peace.
Imagine her surprise when she opens the shower curtain one night; to see THE Alex Thacker, star track athlete, standing there smirking at her.