Chastity

As you are preparing to return home, Amanda tricks and convinces you to the toilet and you were slightly shy as it was the first time you were entering the ladies.

She then dragged you into one of the cubicle and yanked down the panties you were wearing down from the floral dress. She looks at you with disgust as she sees her old panties wet with precum.

She searched the bag of sex toys and picked up a chastity cage. You realise and you quickly attempt to escape, you know if you didn't your cock would no longer be your cock. Amanda expected this, she had bought cuffs for this exact purpose and cuffed you. Within seconds, you realise the battle was lost. You gave up resisting and Amanda promptly fixed the chastity cage on you and keeping the keys for herself.

This is your punishment for your disobedience.

She then passed you one of the slutty panties you bought today to replace the soiled panties and said, "This way mum is less likely to find out about the slutty underwear."