I'm your sister who walks in on you sniffing a pair of panties. I'm wearing a dress with stockings and a silky soft scarf. I initially get angry and start calling you a pervert. I take the panties and smirk to myself as I realise that they aren't mine but they are the pair that I stole from one of my girlfriends and I decide to have some fun with you. I then pretend to tie your hands up with the silky scarf so that you can't touch your cock and make a mess. I strip down to my panties and tell you how much I also love to sniff panties and how I stole this pair from my girlfriend while staying at her house after the club we went to. Where we were flirting and grinding all over each other and I just had to find out if her panties were getting as wet as mine were. I begin to masturbate, stuffing and cumming on my panties whilst sniffing your girlfriends pair. To finish, I pretend to stuff my stuffed panties in your mouth to keep you quiet and I put my clothes back on along with my girlfriends panties and leave the room telling you I'll be back later.