I had always had a close relationship with my older sister Tammy. She was 15 months older than me, and a total knockout. She has brown hair down to her shoulders, green eyes, tanned, with a very toned body from years of gymnastics. She is about 5'6" 125#. Her breasts are pert and perky at 34C, a nice slender waist a tight, apple-shaped ass, long muscular legs.

She used to make me a bit uncomfortable though, she would let her kisses linger a bit too long, rub herself against me when we'd hug, and would let me see her when she would get dressed.

In high school, she was a cheerleader and played volleyball and soccer, and I played football, lacrosse and baseball. So she and I went to all the same parties and had the same group of friends. In fact I had some friends that met the business end of my fist when they said my sister was a whore or a tease.

A few years ago Tammy got married to a friend of mine by the name of Jason. Jason and I were fishing and hunting buddies, and used to play baseball together. In fact Jason and I were supposed to go on our annual 10 day fishing trip to Canada in a few months and I was stoked. I set up a trip to go visit Jason & Tammy, and a day before I was set to get there Jason had to go on a business trip he said he could not get out of. I decided to head up there anyways as it had been a while since I had seen Tammy.

When I got to Tammy's house, she was happy to see me as was I to see her. We had dinner and a few drinks, and she told me she found out Jason was cheating on her. I made a mental note to have a chat with my 'friend', I sat there and consoled her. She was drinking mojitos, and kept grinding her mint leaves with a mortar and pestle, I couldn't help but get turned on looking at her muscle tone as she bruised the mint leaves. She got up to make us another round, and I hopped up take a leak. When I came back, I noticed she had unbuttoned a couple of buttons on her blouse. I couldn't help but see she was not wearing a bra and I liked what I saw. We talked for a few more hours, and I kept getting peeks in her blouse, and got more and more turned on. I told her I was going to bed, she was cool with that, and said it was time for her to turn in as well.

I remember taking off my pants and shirt, and crawling in bed. I masturbated to thoughts of my sister and her fantastic body, and I came so hard and fast it made me dizzy. Sleep hit me fast, since I was tired as hell from the drive. I fell fast asleep and had a crazy dream that I was sailing on a ship. Except that I was the sail, and the sea was a bit choppy. The wind felt good on my cock, it was a warm breeze and the spray from the ocean was hitting it as well. Then I realized this was not a dream, I woke up and my sister was on top of me, riding my cock. I could not help but realize that Tammy's pussy felt incredible. In fact she was the best lay I think I have ever had. Then she put her hands on my chest and started to bounce a bit more. Her tits were hanging in front of my face and I lifted my head and took her gumdrop sized nipple into my mouth and began toying it with my tongue. Tammy started to convulse, and lifted off my glistening cock. Then she let forth with a gush of her cum, I had never made a woman do that before, and she said that had never happened, but it made me want to get in her all the more. Then I flipped my gorgeous sister on her back and stared to pound her shaved pussy with a new found vigor. Her tits were swaying in time with my thrusts, and her dark brown, 3" areolas were begging for my mouth. I felt my balls twitch, and I released my load inside her pussy.

Then I realized not only had I fucked my sister, I just shot my cum in her. I pulled out and noticed that Tammy had had the presence of mind to put a condom on me before she mounted me. I thanked her with a kiss, and asked her when she got that idea. She said she wanted to fuck me since she was about 14, and used to try all the time. I told her that it made me uncomfortable then, and if she had not done this tonight, I would have resisted her. But I am so glad she did. Needless to say, that was not the only time that weekend that I made love to my gorgeous sister all over her house, in fact we only stopped to eat and sleep.

When Jason came back into town, Tammy and I had to stop having fun. I tell you, that was so very tough since anytime we had been horny in the last week, we took care of that. She made it tougher still by rubbing me when Jason's back was turned, or pulling up her skirt to reveal her pussy and playing with herself while Jason and I were talking.

Jason, ran out to the store to get more beer and his car wasn't even out of the driveway before I had my sister bent over the back of the couch, fucking her. I had this vantage point, so I could see when he came back and so we didn't get caught. I felt like a teen at that point, because I may have lasted 45 seconds before I pulled out of her and pushed her head down so I could cum in her mouth. I felt bad, and Tammy just laughed at me and told me it was okay. I immediately dropped to my knees and started kissing her sopping pussy. I was teasing her clit with my tongue, then I formed a seal around her shaved pussy with my lips and slid my tongue in and out of her, like a cock.

She tasted so delicious, she was creamy and rich, with a hint of citrus, and I could not get enough of her juices in my mouth or down my throat. She was looking in my eyes as I licked and sucked her pussy. She reached down and spread herself open, so I could use my fingers inside her, I got one lubed up and slid it in her tight ass. I continued this for another 4 minutes, until she grabbed my head and started humping my face. I responded with a hungry mouth and throbbing cock, I had started humming into her pussy and latched onto her clit. The vibrations sending Tammy over the edge, she came so hard all over my face. Gushing her juices down chin and over my chest. I swallowed as much as I could, and cleaned her up. She turned around and sagged over the edge of the couch again, I stood up ready to put my cock right back inside her, when I saw Jason was turning into the driveway. She saw him too and stood up, kissed me deeply, savoring her juices on my tongue. She sucked on my tongue like a cock, and I had to pull free and run into my room to change shirts, before Jason came back in.
I got into my room and realized I need to shower to get her amazing, heady scent off me. I started the water, and hopped in. I knew I needed a cold shower, but the hot water felt good on my body. I still had a raging hard-on, so I grabbed my shaft and started stroking, thinking of Tammy. I closed my eyes, leaned against the wall and thought of her tanlined C cups hanging in front of my mouth. I shot my cum all over the shower floor, and let the hot water rinse my cock clean. I finished my shower, and got dressed, I noticed Tammy & Jasons door was closed. I stopped to listen, and heard their bed squeeking lightly and the headboard hitting the wall. I got a pang of jealousy shoot through me. I knew I should not feel this way, but I could not help it.

I went out into the kitchen and sat down. After a few minutes, Tammy came in and started to massage my shoulders. She said Jason is taking a shower, and then she tried to straddle me. I asked her if she and Jason fucked, and she said yes. I didn't want to fuck her, but I felt the need to do Jason one better, I wanted to mark my sister as my own. To let her know I was a better lover than her husband. I couldn't get Tammy down on my cock fast enough, she started to rythmically ride up and down on my already hard cock. I pulled her shirt down and started to suck on her gumdrop sized nipples, making them pucker and harden. I told her since I don't have a condom on, I would let her know when I had to cum. She licked my ear and told me to cum inside her, as shewas not fertile right now. She started to ride me in a frenzy, and I was meeting her bounces with thrusts of my own. The chair was scooting itself across the kitchen, making a racket. I picked her up and carried her to the doorframe heading to the laundry room. I used that frame for support as I started to jackhammer away at her tight slit. Her tits were bouncing right in front of me and I fixated on them. She starts telling me that I am a better lover than Jason, how I was bigger, and felt better. I had totally forgotten he is just a few rooms away in the shower. I listened, and could still hear the water running, so I went back to sucking Tammy's right nipple and fucking my gorgeous sister. She told me not to worry about getting her off, just to cum inside her. But I was on a mission, I stuck a finger in her mouth, she sucked on it like it was my cock. I pulled it out, glistening and dripping with her saliva, and then slid it in her ass. I started to finger fuck her ass, and adjusted my stance to where I could feel my cock head start to hit her 'g-spot'. I continued this and could tell she was close, I started telling her she was the most beautiful woman I know. How her pussy and body make me feel, I could tell Tammy wanted to scream, but instead she just looked me in the eye and beared down on me as she started to cum. The veins in her neck started to stand out, as she was cumming, and I don't know why but that turned me on. I started to kiss and lick her neck, feeling her veins under my tongue. That set me off, pushed me over the edge and I told her I was going to fill up her pussy with my cum. My cock started to spasm and shoot more cum then I ever thought possible, especially since I had already cum twice before in the last hour. He pussy was gripping me tight, milking my cum into her womb. Her pussy felt so good, contractions of her own like a hot, wet glove squeezing my dick, stroking it. I pulled out, and there was a line of my cum mixed with her juices on my cock. Tammy dropped down and swallowed my cock, cleaning me, and teasing my oversensitive cock head with her tongue making me see stars. I was overwhelmed with passion and emotion, I told Tammy that I loved her and she smiled and told me she felt the same way. Then she kissed me deeply and let me taste what she had cleaned off me. About that time, I heard realized the shower was no longer running. It got my heart pumping, thinking we had been discovered. But then I heard Jason holler for Tammy to bring him a towel. She smiled at me, and told me she took his other one, so we would have a safety net in case he stopped his shower early.