BIG

[willieone]

I am a 34 year old gym teacher, I consider myself to be in great shape. My body is thin and lean.
I am 5' 8" and I weigh a 107 lbs most of the time. I have been married for 7 years and my husband
and I haven't been able to have any children. Which has been okay with us so far.
My sister is 38 and she has 2 boys. The oldest is 18 and is a special needs child. He has the
mentality of a child and really hasn't progressed much except in body only. He is a horse, 5' 11" and
probably weighs 185. Her other son is 14 and is normal. He is a exceptional athlete.
It was the day before spring break and I was getting ready for my week off of work when I received a call
from sis. She explained that Trevor (her 14 year old) had won his wrestling tournament over the weekend and
got invited to a Tri-state match that began on Tuesday of this week. She was wondering if I would be willing
to watch Tyler (her 18 year old) while they attended this big match. It was going to throw a little bit of a
wrench in my plans but nothing too serious since I wasn't going to go anywhere until Friday. My hubby tried to
get the week off but instead was sent out of town of business and wouldn't be back until Saturday. So, I agreed
to help sis out and watch Tyler for her since he would be too much trouble at the matches for them to handle.
They showed up the next morning with a bag in tow and Tyler looking all happy. He was a cute kid and it was
a shame that his mind wasn't there for him. Sis explained a few things that I needed to be aware of and it
sounded like it should be an easy enough time for me. She said he likes to do his puzzles and watch kid shows on the
tv. She started to leave and she turned and told me that there was one more thing. "Tyler has learned what his
penis is for". I responded with a "What?" She then proceeded to tell me that every once in a while he will drop
his pant and masturbate. She said that she usually lets him do this thing and cleans him up. She said that it isn't
all the time but he will do it.
The first day went by without any incident and we got along well enough. It was actually kind of nice to have someone
around and kind of sort of talk to them.
Day 2 was a little different. Tyler was in the living room watching shows on tv and I was cleaning up after breakfast when I heard Tyler say "Big" and then clap. He did this over and over. I finally poked my head around the corner to
see what was going on. Well, did I ever get a surprise!!! Tyler's pants were dropped around his ankles and he was
sporting the largest hard on that I have ever seen. Even some of the porn guys that I have checked out didn't have a
cock as large as this one. It was at least 9 inches maybe 10 and it had a beautiful purple head on the end that looked like a half of a lemon stuck on a pole. He kept saying "Big, big, big" over and over and clapping like he had
accomplished a great feat. He started to tug on it and I just watched in amazement as I haven't seen anything
like that for quite a while. I watched for about 2 minutes before I realized my pussy was wet and my clit was hard.
I went into the room and Tyler looked at me and again said "Big"!! I nodded and said "Yes, dear it is big". I couldn't resist and put my hand on it to touch the huge bulb of the head and run my hand down the sides as he did.
I then did something that I probably shouldn't have. I dropped to my knees and put the tip of his cock in my mouth and proceeded to give Tyler a blow job. I could only get half to 3/4's in my mouth but I could get my hand on the base and jacked him while I was sucking. Tyler for the most part was standing there acting pleased that his cock
was "big". After a few minutes of sucking and pumping he started to spurt his cum in my throat and as he came, he
responded with a "BIG" and clapped his hands as if he had pulled of a great achievement. (Which in my book, he
did).
I didn't know what to expect next and Tyler pulled up his pants and went on watching his show as if nothing had happened at all. I couldn't believe that I had just blowed my special needs nephew. He just went back to doing his thing and I went back in the kitchen to finish up there. A couple hours later, I had moved on to cleaning up things
and he was still watching his shows. I was still kind of wet from before and my pussy was kinda itching for some
attention. I was just about to reach in my panties when I heard a "big" come from the living room. I couldn't help but to hurry in to see if that cock was hard again. I was amazed to see that pecker sticking out as hard and straight
as earlier before. Tyler just kept clapping and saying "big" over and over.
I couldn't resist the temptation.. I had to have that monster in me. I knew that it was wrong but I needed to see if
I could get that beast inside my pussy. My husbands cock doesn't even come close to this one in size and I had only
had one other guy besides my hubby and his cock was smaller than my husbands.
I stripped down and laid out on the floor. I called to Tyler to come by me which he did with no hesitancy. This time,
he had stripped his shirt off and I took off his pant all the way so that he was totally naked also. I helped him to
position himself between my legs so that I could work that cock into me. I was wet. I did put some saliva on the tip
just to help out. I knew that it was going to be a chore to get this thing in me. I pulled him towards me and lined up
that monster with my slit and he actually seemed like he knew what to do. Random thoughts went through my mind as he started to push that bulb into my wet pussy. Had he done this before? Had sis been fucking her son? How did he know what to do? The bulb of his pecker got in the opening and he pushed it in about a inch or so before he met any resistance. I had him stop and we sat there for a few seconds letting my c*nt get adjusted to the size of the invader that was probing me. I pushed up my hips and he pushed forward again and he went in a few more inches.
I felt like I was being shredded and torn in half.. But, I did have a mini orgasm and that made it much better. I stopped him again and we sat there for about 3 minutes as my pussy was trying loosen itself up. He then pushed again and it went in to the hilt. OMG!!! I came hard right away. It felt like this thing was sticking in my throat. I couldn't believe that thing was in me. I could feel it stretching my pussy out. He started to pump me in and out.
I came again. 3 times already. "Who says size doesn't matter"? I thought as I couldn't remember the last 3 times
my hubby had made me cum at all. Tyler started to pump me faster and faster. He had a look of determination on
his sweet face and I was loving it. He started to say "big" over and over again and I realized that he was cumming. I
thought about having him pull out but since I haven't been able to get pregnant from my hubby, I wasn't too worried about having Tyler's cum in my pussy. I could feel his cock jerking in my c*nt and I mildly came again. 4 times in one fuck. I don't think I had came that many times in the past 2 years with the hubby. Tyler laid there until his pecker went down and got up and got dressed and went back to watching his shows.
We ended up fucking twice more that day. 4 times the following day and 3 the next. My pussy was getting a work out for sure. I thought about having anal with him but I didn't want to risk ripping my sphincter muscle for a fuck.
I had him sleep with me that week and by the time the week was over and sis came back to pick him up, we had fucked 23 times. He didn't say anything for "big" I had to show him what tits were for as they needed attention during our fuck sessions. He got rather good at fucking and sucking at the same time.
I have to admit that I just had the best fuckings of my life. My pussy was sore and worn out. I figured I had cum at least 35 times during our sessions.
Sis came back by on Sunday afternoon. We had only fucked once this day and my pussy was wet with his cum. She asked if Tyler had been a good boy and I said "that he was the best!". And that he could "CUM" over anytime...
She winked as if she knew what I was talking about as they left.
My hubby got home that night and wanted to fuck me. I could hardly feel his cock as he poked and prodded me for his 3 minutes of passion. All the while, I was thinking of "BIG"