Mia has set up a day session with Nanny Rainbow in order to explore submissive regression. Although she is shy at first to discuss with Rainbow her expectations for the session, the experienced Nanny can quickly assess what Mia is interested in. Once they are done talking, Mia is to strip in front of Nanny Rainbow and her wet diaper is discovered. Mia receives her first infraction for not properly disclosing all information as requested. She is changed into a fresh diaper and given a pacifier and bonnet. Then Mia is sat at a desk and must write her punishment lines as her Nanny prepares the cr...

Mia has set up a day session with Nanny Rainbow in order to explore submissive regression. Although she is shy at first to discuss with Rainbow her expectations for the session, the experienced Nanny can quickly assess what Mia is interested in. Once they are done talking, Mia is to strip in front of Nanny Rainbow and her wet diaper is discovered. Mia receives her first infraction for not properly disclosing all information as requested. She is changed into a fresh diaper and given a pacifier and bonnet. Then Mia is sat at a desk and must write her punishment lines as her Nanny prepares the crib.

Once the crib is finished, Nanny Rainbow dresses baby Mia for bed. She chooses a sheer white babydoll nightie and frilly white socks to put Mia in before her nap. She is left in the crib while Nanny Rainbow goes to the other room to get her a bottle. Mia has been fighting her horniness since arriving and finally touches herself. She is embarrassed to be caught by Rainbow when she returns to the nursery.

The second infraction calls for a swift spanking on Mia's ass, and the irritated Nanny pulls out something more suitable for Mia to wear. Mia loses her cute nightie and is put instead into a onesie with mitten sleeves, complete with a straitjacket over-top. After Mia's hands are sure to be kept to herself, Nanny Rainbow feeds Mia her bottle. Once finished with the bottle she is ready to be put down for her nap. Since she has lost her privileges for breaking the rules, Mia is stripped naked and must nap in a cage beside the crib.

Mia wakes from her nap and is released from her cage. Mia is instructed to stand against the crib with her hands behind her back and her legs spread wide. Nanny Rainbow teaches Mia one final lesson about self control as she uses the magic wand mercilessly against Mia's wet diaper. She brings Mia close to orgasm multiple times, but sends the poor girl home desperate for release.