Amber has been a naughty girl and she is going to receive a spanking as her punishment. Nikki bends Amber over her knees for the spanking and quickly discovers that something isn't right. She pulls down the back of Amber's shorts and then questions her as to what she is wearing.

When Amber admits to wearing a diaper Nikki is shocked. She is quick to tell Amber how distasteful she finds her friend's diaper and begins to harass the poor girl about it. Amber's spanking quickly turns into a humiliating experience, especially when Nikki discovers that her diaper is wet!