I was 16 when my sister, 19 caught me jerking off. I didn't notice her at first but had one hand on my cock and the other cupping my balls when I looked up and saw her in the doorway. "Oh fuck" I said and covered up. She laughed and walked over to me. "You know Dave, mom and dad are gone for the evening and my cunt is itching." She uncovered me and my hard cock was staring at her. "Man you got a big cock" she said. I didn't have anything to compare it to so I didn't know if it was big or not. I was a bit nervous and my cock started to shrivel a little when she reached out and grabbed it. She crawled on the bed between my legs and said "Here. Let me help you out." She bent over and started to suck me. Oh fuck it felt good. It wasn't 30 seconds and I let go. I didn't know I was supposed to warn her but she really didn't seem to mind much. She took it all in her mouth and even kept sucking after I was spent.

I tried to apologize to her but she just put her finger up to my lips to hush me. She kept sucking until I was hard again. It took about five minutes. I usually stop after I cum but this was on a whole new level. When my cock was rock hard again she got off the bed and stripped. Her tits were perfect and I could she shaved her pussy. "Now little brother, you're gonna get your cherry popped. I wasn't sure what that meant but found out when she straddled me and plunged her cunt down onto my cock. "Oh fuck" she said. "You have the biggest cock I've ever seen." She started to gyrate and bounce up and down. Then she grabbed a nipple in each hand and pulled. It hurt for a few seconds then it was like a bolt of lightning went from my nipples to my cock. She collapsed as I started cumming. She was now laying on top ov me and shoved her tongue in my mouth. I came hard but it wasn't nearly a full load. She kept fucking me until I finally shriveled up enough to pop out of her. She continued to kiss me for another minute or so then rolled off of me.

We laid there for a few minutes and she sat up. "Don't worry stud, nobody will ever know. But I have to say, with a cock like yours I'll let you fuck me any time you want." She then got up and walked out of the room. I was flabbergasted. I had to lay there and think about it. I knew mom and dad would be gone for the weekend so I thought about what to do. When I woke up in the morning I decided to test her words. I walked into her room. She was asleep. I crawled under the covers and felt that she was naked. I reached around and started to play with her tits. After a couple of minutes she rolled over. She was awake and asked if I wanted to fuck her. When I told her I did she said I had to lubricate her first. I asked how to do that and she said I had to eat her.

I didn't know what she meant but with her instructions I managed to eat her pussy for the next half hour. When she had me nibble on her clit for a time she screamed she was cumming and I tasted it. Then she said if I could I was okay to fuck her. My cock was hard and I hadn't even touched it. I quickly scooted up and lifted her legs. I shoved my big cock inside her. I fucked her until I came twice. It took over half an hour and when I finally pulled out she was crying. I asked what was wrong and she said nothing and pulled me down to her. I was still inside her and we hugged until we both fell asleep. She woke up before me and we were able to talk about it for a bit. She made sure that I would never tell anybody and I agreed. We became as close as two people could get that weekend and have been close ever since.

I've been married for seven years now and still fuck my sister whenever I get the chance. My wife has no clue and as long as we're discreet she never will. I'm so blessed to have a woman I love at home and another woman who gives me the best sex of my life in my sister. Like I said, what a fucking slut she is but I love her anyway.