DICTIONARY:
Age play the act of an adult pretending to be much younger than they are, usually for mutual sexual gratification.
"I stood outside the burger place, the chill wind blowing around my bare legs and up the school uniform skirt, if it had just been a bit longer it wouldn't have been so bad, thankfully I only had to wait a minute or two before he pulled up in the car.
I jumped in, 'hi Daddy, ' I said, knowing he loved it when I spoke in a shrill playful voice whilst biting my lip.
'Hey princess.'
'Can I have a sweetie please?"