TVR/Andrew2/Bath/Bed/Incest/Surprise/Tell/Saturday/Spying

After lunch, Janet decides she going to read and you sit around for a while leafing through some comics. When you notice your father leaving the house, it suddenly comes into your head to follow him. You know he goes into the woods, so you slip your wellies and a coat on and start following him.

At first, it's fairly easy to track him, following his boot prints in the muddy ground, but then he turns off the main path and goes up what looks like an animal track. You got a Boy Scout badge for tracking so even there it's easy to see where he brushed past the wet bushes. Eventually, he gets to what looks like a shed, but then you see the chimney and guess that it must have been a cottage once upon a time.

You stay still for a while, undecided what to do and then you see someone else arriving from a different direction. To your surprise, you see that it's Mary, the girl who babysits on Friday evenings. You shrink back further into the bushes as they both sit outside drinking tea and not saying very much.

You look at Mary, who took her jacket off in the sunshine and you can see how her shirt stretched across her tits. After a while, she stands up and walks round in front of your father and lifts up the front of her skirt. Father reaches out and pulls something from between her legs and while he's looking at whatever it is she drops down on her knees and pulls his cock out.

Janet said it was big, but you hadn't really believed her. Now, as you see Mary wrapping both hands around the shaft and sliding the loose skin up and down to make it even harder, you can't help wondering if yours is ever going to grow that big.

When they go into the cottage you sneak around behind it to see if you can see in. The whole wall is covered with ivy, but there's a window and although it's very dirty, you find that if you get close enough can see in. There's a bed at one end and they left the door open, so there's enough light to see that Mary is on her hands and knees and your father is up behind her fucking her like a dog on a bitch. His huge pole is sliding in and out and you are reminded of the day you saw a stallion mounting a mare.

It seems to go on for ages before he finally cums. When he slides it out, it's all wet and shiny and Mary turns round to lick it clean. It's not until you're on your way home, that you realise you've been watching your father being unfaithful to your mother. Not only that, it's pretty obvious that this wasn't the first time and you begin to wonder what he gets up to when he's in town all week.

"She pulled his cock out, just like that. And it was huge like you said. She must be used to it though, from the way he was able to get the whole thing into her cunny." As soon as you got home, you'd run up to Janet's bedroom and told her the whole story.

Janet looks down at the bulge in the front of your trousers. "It looks as if watching them made you randy," he says and reaches across to unbutton your fly.

• Susan stays the night