Clare is strict and won't tolerate this behavior. Alex gets a hard spanking over her knee and then is made to strip. But she's not just going to wear the babyish party dress now. For her childish behavior and refusal to obey her mother, she's going to be tightly taped into a big, puffy, crinkly white diaper before they leave.
The transformation from a stylish young lady into a well spanked little baby girl is beyond humiliating for Alex, and she feels mortified in her diaper and little girl dress, but she dare not upset mommy more: she has no choice but to face her entire family dressed more like a little girl than a grown up young lady!