Mother is screaming

You and your sister. You both were totaly like paralyzed. You looking down on your hard cock and then up into your sisters face. She is looking right on. She is not one second looking somewhere else, your bigger hope was that she didn't seen the screen as she came in. Then you grab a pillow and cover the cock and also your really big balls. You often seen balls from other guys at your porns, thats why u know that they are much huger then others. Then your sisters voice breaking the silence and she says that she didn't seen anything. Also it wouldn't be so bad cause we all family and I'm her brother. Then you both got shocked from a scream. It was your mother yelling for you to help her at something.