Big Sis

My sister is 3 years older then myself. Growing up I had the biggest crush on her. As teen, I used to think of her while jerking off and would use her panties whenever I could. I was always trying to catch her naked. I even broke the lock on the bathroom door so I could “accidentally” barge in when she was in the shower. Sometimes I would catch her getting out of the shower and see her nude. Most if the time she would just yell at me to get out and call me “a little perv”

She moved out when she was 19 and I would see her at family functions and holidays. It wasn’t until I was 18 that I got another chance to see her nude again. The summer after I graduated my family went on vacation to Mexico. My sister came with us and brought her boyfriend. They shared a room that was next to mine and was on the ground floor with a little patio. I spent may first few days staring at sexy girls in bikinis including my sister and nights hearing her having sex with her BF. I learned that she was quite vocal during sex. On the third night I was walking back to my room late after making out and fooling around on the beach with a girl I had met that day. The girl had a curfew and had to get back to her parents so I was left very horny. As I walked back to my room I figured I would just go through my patio door as I didn’t want to walk back to the main entrance. I passed my sisters room and the lights were on but low. When I looked over I could see movement in her room as the curtain wasn’t completely closed. Being the “little perv” that I was, I stepped over the little railing and peaked in. What I saw provided hours of personal fun. My sis was completely nude and riding her BF. I watched her perfect tits and amazing ass as she went up and down on his cock. I couldn’t help but start rubbing my own hard on. I looked around and couldn’t see anyone so I pulled it out of my shorts and began stroking to her exact rhythm. After a few minutes she got off of him and I was rewarded with a perfect view of her trimmed bush. She got on all fours and he got behind her. I could see the pleasure on her face when he entered her. He quickly built up pace until I saw him tighten up and I knew he was coming. I shot my load all over her sliding door. As he pulled out I could see that he wasn’t wearing a condom and figured my sister must be on the pill. They turned off the bedside light and I returned to my room. The next day, every time I looked at my sister all I think about was her being full of his cum and wishing it was mine. The next night the girl I had been hanging out with got mad at me and left. I went to my room and waited until I heard them start having sex. I quietly opened my sliding door and after making sure no one was around slipped over to my sisters patio. Again the bedside light was on and I could see them. They were in the missionary position and he was really going fast. After looking around to be sure I was alone I again pulled out my cock and watched my sexy sister having sex. When he put her legs over his shoulders she almost screamed. He only lasted a few more minutes like that and the finished in her just as I again finished on her door. He pulled out and rolled off her but this time she got up and I was awarded with a full frontal view of her perfect body before she went in the bathroom. I heard the toilet flush then watched as she climbed onto the bed and began sucking him. Apparently my sister wanted more. She sucked and licked trying to revive him and as she did, she repositioned herself so that her ass was pointed directly at me. I now had a perfect view of her ass bent over and was looking directly at her recently fucked pussy. I became hard again and started rubbing my cock. After a few minutes she sat up. Apparently her ministrations were not having the desired effect. She flopped down beside him looking exacerbated. She grabbed his dick and gave it a few more tugs before letting go and turning off the light. The next day we all went home but those night provided me many more nights of self pleasure.

After that summer, I joined the military and left the states for many years. My sister broke up with that BF but got married a few years later and had two sons. Her husband was an ass and they eventually divorced. I also got married and had two children. I am still married and my kids are still in school and at home. My sister’s sons are both out of the house now and she lives alone. This summer she asked for some help with a few projects around her house. She lives about 6 hours away do my wife suggested I just take a week and just stay with her while I take care of her projects. I discussed this with my sister and we agreed it would be the easiest way. I scheduled a week off. My wife could take time off and my kids had sports camps so it would just be me. I arrived and the first day we went over the projects and made a list of supplies we needed. That night we had dinner and more then a few drinks. As we talked and drank I kept looking at her and realized that she was still very beautiful. I also realized that I still lusted for her. This was even more apparent as our conversation turned to more personal topics. She admitted that after her divorce she only dated a few guys and that she hadn’t dated anyone in over a year. It must have bern the alcohol but I just blurted out in shock “you haven’t had sex in over a year” She laughed and just about fell over. She couldn’t believe she was talking about her sex life or lack there of, with her little brother. She then made a self depreciating comment about being old. Again thanks to the alcohol, I didn’t hesitate to tell her that she was beautiful and sexy and that any guy would be lucky to get her in bed. She laughed again and just said “sexy huh? You better watch it little brother” There was an awkward silence before she suggested going to bed. I agreed and headed to the guest room. I grabbed my toothbrush and headed to the bathroom. I passed the laundry room on my way and saw her dirty laundry in a hamper. After brushing my teeth and on my way back to my room I couldn’t help but wonder about her laundry. Her bedroom door was closed so I went into the laundry room and opened the hamper. Among her clothes were several thongs. I reached down picked up a pair of silky pink panties. I closed my eyes remembering all the times I saw her nude as I held them up to my nose. I was instantly hard and rubbed my cock through my shorts thinking i would just barrow these for the night. That’s when I heard a gasp behind me and my sister’s voice ad she said “oh my god you really are still a little perv” i turned around and knew I was busted. She was standing there, staring at me with look of shock on her face whole wearing a nightshirt that came to her mid thigh. Again maybe it was the alcohol or maybe I am a perv but I just looked at my sister, dropped her panties on the floor and told her flat out that I have had a crush on her since I was a little kind and that i have always wanted to have sex with her. I then walked right up to her wrapped my arms around her a gave her a full kiss on the mouth. After a few seconds she responded snd opened her mouth. We kissed for a few minutes while I squeezed her ass with one hand and cupped her breast with the other. After we broke apart from the kiss she just stared at me before whispering “lets go to my room”. We went in silence to her room and without speaking removed our clothes then fell onto the bed. The sex was amazing. We spent that night and every night that week exploring each other’s bodies and pleasuring each other in every way possible. We talked about everything and agreed to continue our new relationship in secret.