You thought your step sister was so sexy, & always enjoyed masturbating to her naked image in your mind. As she was heading out for the weekend with her friends, you snooped through her room.. noticing a pair of panties that she has recently worn.. upon closer inspection you think she worse them while masturbating. You smell them and begin to enjoy yourself.. touching your cock.. stroking picturing what it would be like to be shrunken down and stuffed into her panties for the day.. you were enjoying her scent so much that you didn’t hear her come back home early..