She hasn't a bra

With a slight smile, you look at her, her wet T-shirt clinging to her round breasts and you snap your fingers. Under her shirt her bra vanishes completely, along with Jenny's memory of having put one on this morning.

Standing there, totally soaked in the fountain the white T-shirt is clinging to her body in all the right places, her nipples poking against the wet fabric, on clear display to anyone who happened to be walking by.

Letting out a little gasp, Jenny's hands come up to cover her exposure, quickly sinking herself below the water level once more, looking around frantically hoping that no one has seen her.