I do return them after washing them, and so far I don't think anybody has noticed, but I am worried about getting caught or where this might go next.

As the title says, I've been taking my sister's underwear (both dirty and clean) occassionally for about 5 months now. My household consists of my mom, my sister, and me. I'm the designated laundry-doer in the house, so I have ample opportunity and frequently handle both her and my mom's underwear.

For the longest time I was uncomfortable and almost unwilling to handle other people's dirty underwear, but over time my curiosity peaked and I started handling them more, looking at them, etc etc.

Long story short, this situation has been escalating and I now frequently borrow her underwear to do all the deplorable acts you can imagine. Recently, I have even started taking photos of them, and going into her room to take clean pairs as well.

I do return them after washing them, and so far I don't think anybody