I got you, Pussy Shooter, though I'm upping their ages to 18 and 16.

"This goes against everything the Lord stands for." Their mother shook her head. "Jesus was TORTURED for you!" She kept yelling, raising her voice with each sentence, making her naked children flinch. "CRUCIFIED! HE WAS CRUCIFIED!"

She was shocked when she came home with their other siblings of various ages and some other townsfolk. There they were, each in a different bathroom, knowing what the other was doing and essentially blackmailing each other to get away with such godless activities.

But here they were, caught up in themselves, and now they were going to pay for it.
"This is you." She held up their birth certificates. "This is what will happen to you." She threw the papers into the fireplace. Their birth records were burned away.

"Waahhaaaghh! Please mommmeeeeee!!" "NooooOOHHOHH!" I DOND'T WANAAH DIIIIE!"

"You're old enough to know better, to know to not beg. To not do this horrible thing. You'll have just gone missing."

((will continue in a second))