I came home from school at 5pm to find a note on the table from mum telling me to go round to grandpa's to thank him for my present. So I ran upstairs to change.
As I passed Uncle Toms room I glanced in, the dirty old git was at it again, laying on top of his bed wanking his enormous cock.
I moved back a little so that he did not see me and watched as he pumped his manhood harder and harder, suddenly he erupted all over his big round belly.
I rushed to my room feeling the need to touch my pussy. I undressed quickly and lay on my bed, legs wide apart, licked my finger and run it along my pussy lips, which were already running with juice. I circled my clit feeling it grow in size. Pushing a finger into my wet pussy now and again too.
“God that feels good” I said a little too loud.
Suddenly the door banged behind me, I pulled my hand out quickly. Who was that? I thought, maybe Uncle Tom had been watching? I jumped from the bed and dressed quickly my panty's were soaking wet but I kept them on anyway.
I run out the door without my coat only to be met with pouring rain, by the time I got to grandpas I looked like I’d entered a wet T-shirt competition.
As I got to the door it opened and a man in a boiler suit came out, he smiled at me while openly staring at my wet tits showing through my top.
He introduced himself as Jim.
“Tell your Grandpa everything’s working and I’ve set it all up in the spare room”
With that he turned and left.
Not really knowing what he as talking about I decided to have a look for myself. Grandpa was still at his book club and Grandma was out for the night. I went up to the spare room.
I was amazed at the technology in front on me, a huge TV screen and an array of buttons.
Everything was labelled so I pressed one marked shower room.
“Bloody hell the dirty old goat had installed cameras in the shower”
On closer inspection I realised there were camera’s everywhere! There was even one in Grandmas room, so he can keep an eye on her every move.
I thought “you dirty old bastard” but I could feel my pussy tingling. I could feel juice leaking out of me again.
I came downstairs just as grandpa came in the door.
"Baby great to see you" he said and gave me a big hug, my wet tits pressing against him.
I pulled back and told him what Jim had said, he laughed and turned away quickly.
"He's fitted window locks" he told me still with his back to me.
You dirty bastard I thought giggling to myself.
Grandpa walked off into the kitchen and I shouted to him that I was going for a shower, with a great big smile on his face he shouted back.
"Take your time"!!
I walked into the shower room and could not wait to undress, I heard Grandpa walk past the bathroom door, I know where you're going I thought.
I put some music on my ipod and turned on the water. Wiggling my arse to the music I started to strip. Turning my back to the hidden camera I whipped of my bra, this felt so good knowing I was being watched I could feel myself getting turned on.