I grew up with my step sister throughout high school and she would always put on her pantyhose in the morning before school. I was fortunate enough to have a cool enough sister that would let me watch her put on her pantyhose. As soon as she started putting them on I would instantly get hard. She wanted me to masturbate in front of her while she was putting on her pantyhose. I used to love when she would watch me masturbate 😛