the usual "she won't be home for a while"
jump in the shower, get busy, all of a sudden "oh shit what's that noise?"
mom came home early of course.

Banging on the bathroom door, I was like yup I'm dead
my girl went out first, got yelled at in her towel
I tip toed to her bedroom (which thankfully was next to the bathroom)
got dressed in a hurry and came out to face the music

Mom called me everything but a child of God
told me never ever ever come to the house again
I escaped, and since this was the 90's before cell phones
me and gf had to communicate by notes

The funny part is it never registered that mom could call the cops
(we were both underage, but nowadays that shit don't matter)