A teenage boy (Daniel Radcliffe, 16) takes off his shirt (we see his bare chest) and climbs into a bathtub; the ghost of a girl plunges under the water and peeks into the water, presumably trying to see him nude.
The father removes the boy's pj's and lays him on the bed and playfully slaps his bare bottom. As the boy jumps up from the bed, there is a very brief frontal view before he wraps a towel round himself.