OK,. a little brother sister here so do not read if you are offended
Having a younger brother is a bitch at times. My kid brother is always interested in sex.
I noticed him trying to look at me and see down my top or up my skirt and I thought it was really gross. Then, one day I noticed that my panties used to go missing from the laundry, sometimes for a week at a time. For a moment I thought it was my dad, how sick is that, but I quickly realised that it was my asshole brother. I didn't know what he was doing with them, wearing them for all I knew, but I was really pissed that he was taking my stuff.
Then one day the innevitable happened and I caught him in my room, with my used panties clamped to his face with his pants round his ankles and jacking his cock. I was white hot with anger in a moment but something made me just stop and look. As I watched he leaned back and moved my panties to the head of his cock. I watched as he arranged them so the crotch was right at the end and he sighed as he pumped his sperm right where my own pussy stains where. He did it almost tenderly. And suddenly my white hot anger turned to white hot lust. I crept back to the front door and gave it a good slam calling 'Hey Mickey, I'm home'. I heard his feet running upstairs and when I got up there he was lying on his bed, cool as you like reading. 'Hey sis' was all he managed. Well, I went straight to the landury hamper and there, right in the top were my panties. I took them to my room and looked at the load my brother had shot into them and boy, there was a lot of it. I remembered how he had done it kinda slow and careful, like he didnt want any to go anyplace else. And then my hand was between my own legs and the panties I was wearing were off and had been kicked across my bedroom. I rubbed myself standing up. SOmething I had not done until then. As I came, I held the panties to myself which was stupid as all hell, but really horny. I orgasmed long and hard.
Over the next few months my relationship with Mike changed. We fooled around more and eventually we fooled around sexually too. Initially, this was a little mutual masturbation, but it went way beyond that and I can't tell you about it here. From time to time, I get excited thinking about my kid brother and it gets me hot as hell so I am off to masturbate right now. I am going to imagine the first time Mike came on my breasts. Mmmmmm