Marilyn stroking my tool was the best thing I ever felt. I could n't wait for the following time we had the house to ourselves.
Well, I did n't throw to wait very long. Two days later our parents announced that they were going to a business get together Dad had on the west seashore and that Marilyn and I would be staying family. Oh tinker's damn ...
I had just gotten my device driver 's license so it was my job to take Mom and Dad to the airport.
'' Take care of your baby, '' Dad said, `` and no parties ! ``
A small interpreter in my head said, `` No problem ! ``
When I got home Marilyn was out laying in a chaise by the pool. She was wearing a thong bikini that covered her private region, but just barely. The top was two minuscule patches of cloth that hid only her nipples. The arse was even smaller.
'' Where did you get that, '' I asked ? I could n't take my optic off of her.
She pulled her sunglasses down just far enough to depend over the top of them. `` I bought it a few week ago. Been hiding it from Mom and Dad. Do you like it ? ``
Before I could suffice she looked at my crotch and smiled. `` I think you do. ``
There was no denying that I liked it. My dick was already solid.
'' So, what have you got planned for today ? '' I said matter of factly.
Marilyn shrugged. `` I do n't sleep together. I thought about going to the shopping center with Becky or maybe a film with quip. ``
My heart sank. I was really hoping for another handjob.
She pushed her glasses back up and layed her read/write head back on the chaise.
'' Or maybe I 'll just stick here and watch you jack your cock. ``
Yes !
'' That sounds like fun, '' I said then added, `` It would be even better if I could see your pap while I did it. ``
'' Hmmm, you think so, '' she said through a smile.
My cock twitched in my knickers.
'' Well, choose it out and let 's see what happens, '' she said.
'' Out here, by the pool ? ``
Marilyn looked around. `` Why not ? It 's just you and me out here. '' With that she reached behind and untied the bikini top letting it fall away.
Her pap were everything I had imagined and more. They were perfectly symmetrical and her nipples were just as perfect pointing straight ahead. From the looks of it I thought she was enjoying this a little more than she was letting on.
'' OK, start jerking it. ``
I took my prick in my hand and began stroking while I stared at Marilyn 's perfect breasts. She, in turn, stared at my putz which was already oozing a clear sticky liquid.
'' Come closer, '' she said. `` I want to see it up close. ``
With my cock and nut sticking out of my jean I walked over to where Marilyn was sitting. To my surprise she reached out and took my hand off my swollen asshole and spit into it.
'' There, that will make it slicker for you. ``
At the same time she took my clump in her hand.
'' Let me take these out of the way, '' she said with a grin.
As much as my sister was trying to pretend this was a big joke for her she was also beginning t wriggle in her sit.
I decided to go for broke. `` I bet this would be even more fun if I could see your pussycat ! ``
Marilyn let go of my balls and stood up. diddlysquat. I thought I just blew it, but to my express surprise she untied the thong and let it fall to the floor.
Marilyn 's pussy had a comic strip of dark tomentum down the middle. The rest had been shaved so as not to advert out the side of the thong. She sat back down.
'' Now what, '' she asked ?
My cock was straining for relief and I had to stop jerking it to the lowest degree I blow my load and end the unit thing.
'' Ummmm, can I see your clit ? ``
Without a word she placed both script on the sides of her kitty and spread her lips. And there it was, the pinnacle of every man 's desire. And as I stared at it I saw it spring up. She was as horny as I was. Then without me even asking she began to rub her clit with her two exponent digit.
'' I 'm warning you, '' she said, `` sometimes I pee when I come. ``
I could hardly stand it, but I held off cumming to let her catch up.
Marilyn squeezed her clit between her fingerbreadth and jerked it up and down while systematically pushing her pelvis into her hand. I hardly moved my hands on my cock for fear of cumming compensate then.
Then suddenly my Sister pushed her hips into the air and moaned, `` I 'm cumming now ! ``
As she spoke she began to pee. I wonder now if she had planned it because where I was standing she was able to make a tenacious arc into the air and have it land on my cock and egg.
As her pee drenched my hired hand she moaned out, `` Come on my titmouse ! ``
I stroked my shaft hard for just a few seconds when the outset watercourse snap out bypassing her tits and hitting her squarely in the face. She did n't seem to mind in the to the lowest degree, but continued pissing ; her piss intermixture with my cum.
When Marilyn finally stopped peeing she gave a few more grunts and fell back on the recliner. The last of my cum was dribbling out of my cock as I collapsed in the president next to her.
After a few second we caught our breaths enough to look at each other. We began to express joy.
I wondered where this was all leading to when Marilyn said in a very soft voice, `` I wonder how that thing would feel stuck in this matter ? '' she pointed to her pussy ...