First tights in costume with sister

i’m not sure if this is why i like tights/pantyhose now… I’ve always thought it wasn’t at this time, but it seems pretty likely in any case, it’s a true story,

it’s a bit hard to remember every detail, for some reason my sister had us dress up for a little skit or something, I was about 7 at this time, and she was about 12, she was a witch, in a halloween costume, all in black, with black tights, and I was the witch’s pet turtle or alligator or something, and she had me wear dark green tights and a green puff vest (that was the 80s; i later wore that vest with a hooded sweatshirt in college a few years before everyone else was doing the exact same thing… haha) i know now she noticed the bulge at my crotch and was giggling, but i didn’t know why then. there is a picture even of us that day, then around when i was 13 and 14, and she entering college, she would leave tights around her room when she was away at school, there were opaque dark green and navy ones, and some tan and black pantyhose… and i think she knew i tried them on…