Marilyn Monroe- My Friend

It happened to my friend in front of me. She was in charge of taking care of a childcare center. It was a part time job. She needed some cash for a strict personal reasons. Little did she know that the day care had notorious kids. It was a hot day and she wore a long frock dress. As the dress was long, she did not bother wearing panties.
She was in the playground with the kids. There was a leafblower there and the kids decided to blow her skirt to have fun. I was there that day to run an errand to her. She was talking to me when one of the boys brought the blower and started it. In a matter of seconds, the dress went up to the point I could see the bottom half of her white bras. From that point to the feet, I along with 5 other kids (3 boys and 2 girls) could see her bare bottom.
The kids went, lily (fake name) is not wearing underwear. The blower was still on and she was having some hard time pulling down her dress. The girls were covering there mouth and eyes but still seeing her once in a while.
The kids were pulling her dress from here and there to tease her while she tried chasing the kid with the blower who was constantly blowing her to show her bare bottoms. I jokingly said to her that if the kids want to see her pussy and butt so bad then she should just show them so that they don’t tease her anymore. She took it seriously and it worked. She suddenly stopped struggling and lifted her dress to expose her bare bottom to them and said to them to look properly with their heart's content. Their fun ended within seconds. They all saw her pussy for 10-12 seconds with a sad face and then said that they don’t want to play anymore and their mood died. So they went inside. She let go of the dress and after some time we resumed our conversation.