"You don't look like a little boy to me..."

[Moggie]

or sister, or niece....

Personally, I think this should be drilled into every boy's skull from the time they are old enough to know the difference between boys and girls.

Personally, I'd more more likely to yell "She's someone's momma!" because if she isn't yet, she will be soon.

[McGoddess09]

Haven't you watched Maury lately? Teens are doing it on the school bus nowadays!

My senior year, a girl got caught giving head on the back of the bus. The guy receiving was one of my students for student aide. He was a Freshman. She was a Sophmore.