Alex and Anne have a secret they've been keeping from everyone. When the couple are alone, they like to role play. Alex becomes the Man of the House while Anne turns into Annabelle, his sweet little girl. It's naughty, dirty, exciting. And they both love it when Alex diapers Annabelle up for a day of secret fun.

But now it's not private anymore. Alex and Annabelle are on vacation at the most famous theme park in the world. As long as they are in the park, Annabelle will be treated just like any other kid. She'll be dressed up in children's clothes, forced to hold Alex's hand, and made to eat off the kiddie menu or face a spanking for being a bad little girl.

And that's not all. Because under her little girl clothes, Annabelle has another secret. She's wearing loud, thick diapers for the whole trip. She's expected to use them, and when the couple are alone, Annabelle regresses even further, becoming Alex's sweet baby girl.

And if Annabelle is really good for Alex, he might even have a surprise for her that will change their relationship forever. Now all she has to do is behave, but for a naughty little girl like her, that might be the hardest thing of all on her long, wet vacation in diapers...