After school nudity

My school was only a couple blocks from where we lived so I’d usually get home about a half hour before my sister did, she went to school across town and had to take the bus. That left me time to sometimes to jack off if I felt horny that day, which was usually the case. Because it had been so hot lately after I was done I’d pull on a pair shorts and go open some windows to try and cool down the house.

One day after my sister got home I got the bright idea to strip off my shorts and let her see me naked. She was a year older than me and I didn’t think she ever seen a naked guy so I thought she’d maybe like it. I actually thought it would be pretty cool. 

We were sitting on the couch and I stood up and said it was way too hot and dropped my shorts and sat back down naked. She looked over at me but didn’t say a word. We sat there like that for maybe an hour, she’d glance over every once in a while but never said a word the whole time. Actually I don’t think she could actually see anything because when I sat down my cock wound up between my legs. Finally just before mom was due home I pulled my shorts back on.

My sister didn’t say anything about what had happened to my parents that I knew of because neither one said anything to me. 

The next day I jerked off when I got home but didn’t bother getting dressed before she got home. I was on the couch when she walked in the house and again she didn’t say anything. I said I was going to get a soda and stood in front of her and asked if she wanted one. I was only a couple feet away and she was staring at my cock but she still didn’t say anything. Right before mom was due home I got dressed.

After a couple weeks both of us got used me being naked when she got home. She never really said anything about it until one afternoon when she asked if I ever jerked off. That kind of took me by surprise and when I didn’t say anything she said I could do it if I wanted to. 

The next day I didn’t jack off like usually but as soon as she got home I started playing with myself. When I was as hard as I was going to get I sat down next to her on the couch and jacked off. It didn’t take to long before I stayed to cum and when I did it was the strongest and longest ever. She watched all of it but never said anything.

After that, that was our routine: I’d sit next to her on the couch and jack off while she watched. She never touched me or offered to, never took off any of her clothes. She just like watching me jerk off and cum.