So it all begin about 5 years ago, while I was visiting my grandparents for the mid term holidays, I always look forward to my visits as they live within a woodland area and not far from a sandy beach and was great company.
I was just turned eighteen with raging hormones like most teenagers I guess, constant hard-ons and perving at females every chance I got.
My mom and dad drove me to see my grandparents but would have to be returning home next morning as they had to work.
Gramps greeted us at the door all smiles and hugs as each one of us went into the house, Grandma was in the kitchen and she gave us all a big hug, My face pushing into her breast's was enough to give me an instant hard-on so I quickly sat at the dining table to hide my embarrassment.
For the next two hours we all sat and chatted to catch up with each others on goings since we last saw each other, copious amounts of tea and coffee had been drunk and what seemed an endless supply of ham and cheese sandwiches.
While I left the adults to sit in the lounge and continue their conversation I told them I was going outside for a walk.
It was very mild outside and the sun sat high in the spring time sky, I could hear many bird songs as I walked along, I soon found myself down at the lake on Grandpa's land and could now hear frogs croaking the mating call but I could also hear another sound, it seemed a little way off so I moved towards it to find out what it was.
As the sound got louder I could see someone not far from me, I ducked behind a tree to observe what they were doing and managed to creep closer for a better look, Wow I thought to myself as I could clearly see it was a man standing behind a bent over woman, his erect cock pistoning in and out of her, she was moaning and writhing backwards to meet each of his thrusts. Well my own cock swelled to full size and without thinking or even realising I removed it and began stroking it as I watched and listened to the two strangers shagging.
I found myself mesmerised by the mans long thick shaft that glistened with the woman's pussy juices on it, "fuck I wish I could taste her pussy juice" I thought to myself as I slowly stroked my hard cock not wanting to cum to soon at least not before they had finished fucking. I had never witnessed people having sex in real life before, only on porn films and I had listened to my parents many nights.
The man was holding the woman by her hips and was thrusting in and out of her pussy like a man possessed, I could just about hear the sound of his thrusts slapping against her ass cheeks, every now and then I heard her give a loud moan of pleasure and wondered if she was having an orgasm.
They continued like this for about 4 or 5 minutes, when suddenly the man withdrew his cock and the woman spun round and went down on her knees, the man had a hand on her head while he pumped his cock with the other hand and suddenly his body went rigid and he began to spurt his cum over her face and then she took him in her mouth and was sucking what ever he had left and swallowing it.
She continued to suck him until he pulled his shrinking cock from her mouth, then I could not believe my eyes as I saw him start to piss over her face and in her mouth, she was stroking his balls as he aimed his cock down and pissed over her beautiful round tits, this was to much for me and I shot my own cum over the bush in front of me and some dribbled onto my hand, without thinking I wiped it on my t-shirt and shorts as I pulled my clothing back to normal.
I looked back at the couple and they were now standing holding each other and kissing.
I turned around and quietly crept away, heading back towards granma and granpa's home, reliving everything I saw all the way and smiling to myself, wishing it had been me fucking the woman.
I was hot and sweaty by the time I got back and went in through the kitchen door, grandpa and dad was sitting at the table drinking bourbon and chatting.
"Hi son" said dad
"Hi dad" I replied "Hi grandpa"
"Hi Jake" said grandpa, "You look flustered, is it still hot outside? Did you go down to the lake?"