Lesbian Stepsister

You find yourself making food in the kitchen on a dark evening both Mom and step dad have left for a romantic dinner together and it's no one at the house except You and Beth... "Hey" You jumped a little from the sudden greeting coming from behind you "Whatcha cooking?" She says as she comes closer sliding her hands around your waist and whispering in your ear. She has been doing this ever since you moved into your step dads house but only when nobody is around.