Allegedly...a girl from Cleveland was on a class trip and lost her virginity. She got really excited and decided to text her friend. She accidentally sent it to her father.
Story is here. As someone who recently got a touchscreen phone, it's way too easy to send a text to the wrong person. So...the story isn't impossible.
The best part about this? The creativity on the web. Someone decided to create some other "embarrassing" texts - hilarity ensues.