Sisters Thongs

my sister is 8 years older than what I am, and i often find myself in her underwear drawers sniffing through her thongs and imagining taking them of her body. i have decided that i am going to take one or two of them the next time i find myself in her drawers. she is quite petite. but she has a nice ass and cute tits, and a nice pu$$y indeed. I found naked pictures of her on her phone so i know.
lets see if I can get my hands on some thongs. most of her underwear is in black and supper small stringy ones. i think she is quite kinky but i will never ask her that straight forward.