Kirstin told CBS News, "My friend was over one night and we said, 'What should we do"' And we said we should invite people over after 11 -- not my smartest idea."
But what she didn't know was how her father would handle her punishment once he found out.
Instead of taking away her car or cell phone, Kirstin's father Robert took out an ad in the local paper.
Under his daughter's picture it said, "I'm in big trouble for missing my curfew and my parents are making me provide 30 hours of free babysitting as punishment. My pain is your gain, so call."
Robert Rausch said, "We wanted to get her attention and give her something to think about, and I think we accomplished that"
So far, Kirstin is about halfway through her 30-hour sentence.
On "The Early Show" Monday, Kirstin told co-anchor Harry Smith she had around six people over to her parents' house after 11:00 p.m. -- her bedtime.
Robert Rausch interjected, "Sounded like two dozen, Harry."
Kirstin said her parents awoke around 2:30 a.m.
Kirstin said she thought she was going to get away with having her friends over, adding, "Obviously, I didn't."
Robert said his first thought when he learned invited people were over was, "I'm going to kill her."
He said he thought someone was in the house.
"Turns out there were several someones in the house," he said. "We were really upset about it. She certainly knows the rules. And she certainly knows better than that."
Robert conceded that his daughter is a great daughter, earning exemplary grades and involved in a variety of activities, including National Honor Society and chess.
Robert said, "I'm not sure what the model kid looks like, but, yeah, if I had to sketch out what I wanted the perfect daughter to be, Kirstin would be the one."
As for the advertisement in the newspaper, Kirsten said when she saw it for the first time, she wasn't humiliated, but rather "really mad."
Since the ad went out, Robert said the family has received many calls from people looking for help with their kids.
"We actually feel like we're helping some folks out," he said. "One of the first ladies that called was sitting for her nursing test and needed a babysitter to watch her kid. Another family, the kid with Down syndrome called, a single mom that was worried about missing a meeting called. So, the response has been really, really positive."
As for Kirsten, she says she's learned her lesson.
"I learned that if you break curfew you're going to get in trouble. And everything -- every mistake has a consequence," she said. "Mine, I obviously got in trouble for this one."
Robert added, "There was certainly no intent to publicly humiliate her. We initially planned this just to be a local thing, but obviously it caught a lot of folks' attention."
Smith said, "I think you might have given a lot of parents an idea here, Robert."