MY STEPSISTER WOULDN'T LET ME GO THROUGH THAT WITH HER

When we were alone inside the house, she and I always did some naughty things, but it never went beyond that, because she kept thinking that someone could arrive at any time and find us there in that very involving situation. So, she took all the care in the world to contain and control herself and thus not get to the point of letting her horniness and desire speak louder.