*** Pretext: All parties in below mentioned story are 18+ in age.
I suppose you could say that my sister Karen and I were your typically siblings. We generally got along well but there were many occasions were we'd argue, get on each others nerves, and have to battle it out to solve dilemmas. My parents were divorced and Karen and I lived with our mom and stayed with our dad on most weekends. Our mom worked second shift, which meant that we were home by ourselves most nights.
There wasn't a whole log going on. Neither I nor Karen were out with friends or working. We were in just lounging watching some TV. Having not much to do, I lit up a joint and offered Karen to partake. As we sat on the couch, our lunges full of smoke, we slowly exhaled, staring at the plumes of smoke that filled the air. Before long we were feeling the affects of the joint and obtaining that mellow buz we were looking for.
Whatever show we were watching had ended. Karen went to take a shower and I decided to go to my room for the night. Lying on my bed in my boxers, I intently stared at my phone. Images of naked women in various poses and sexual positions is what peaked my interest at that moment. My cock began throbbing, and I instinctively began rubbing it.
I hear the bathroom door open as Karen walks down the hallway to her room wearing her long night shirt and carrying a hoodie. I cover myself just enough so she can't see my raging hard-on. But as she walks past my doorway, I take notice that the hoodie she's carrying is mine, one which I haven't seen since lending it to her some time back.
I yell out to her "hey, is that my hoodie?"