Wearing stepsister pantyhose she wore to school

After my stepsister got home she was laying on the couch with her skirt and pantyhose on and was waiting for her to change, her feet looked so nice threw pantyhose as she was on couch watching TV she would rub feet together and her skirt was pretty short could see up it when she moved around and see her laced red panties threw her pantyhose, she sometimes catches me looking at her legs but never says anything, she's only once caught me wearing her nylons and a skirt last Halloween but she thinks it was just for the night but I've been wearing her pantyhose for while. Last Halloween she saw me in her school skirt and black pantyhose and she was ok and said looked cute and showed me how to make skirt shorter rolling top of it, she said she does in school but wearing black pantyhose helps with it short and said feels sexier in shorter skirt and I told her I liked how her pantyhose felt and wanted to try wearing all night at home. She let me wear around her for while