TVR/Andrew2/Bath/Bed/Incest/Surprise

The day starts off slightly strange. Mother's behaving oddly, looking happy, but walking as if she's got a sore bum, and then she gives you a kiss as you leave the house. The bus is half empty at first, but it soon begins to fill up and a girl from your class plonks herself down in the seat next to you.

"Penny for your thoughts," she says digging you with her elbow.

You were miles away, back in your bedroom, sliding your cock into your nine-year-old sister's cunt. "Eh! Oh, sorry, I was miles away."

"It's not hard to see what you were thinking about," she says looking down the bulge in your trousers. You shift uncomfortably at being caught out. "Don't mind me, I'm just jealous," she says and to your surprise, she reaches across puts her hand on your bulge. "Mmm, nice one." She gives it a squeeze and you look around in a bit of a panic in case anyone has noticed.

When you get to school, she goes off with a bunch of her girlfriends and your friend, David comes over to you. "I think Rebecca fancies you," he says, punching you on the arm.

"Ouch! What makes you think that,"

"Well, the fact that she gave your cock a squeeze is a bit of a clue," he says with a laugh. "You're lucky, she's not like some of the other slags who will fuck anything with a cock."

When you go into the history lesson, you find yourself sitting next to Rebecca and as the teacher drones on about the Industrial Revolution, she takes your hand and puts it onto her bare thigh. You leave it resting on her warm skin for a few moments and then slide it up underneath her skirt. At the same time, she reaches over to give your swelling cock a squeeze. "I'm going for a pee," she whispers, "give it a minute and follow me."

She puts her hand up. "I know, you need to go to the Ladies," the teacher says sarcastically. Without waiting for permission, Rebecca walks down to the front and you can see the teacher watching her bum as she wiggles out of the door. You count to a hundred and put your own arm up. "It must be catching," the teacher says and you can't help noticing some of the other kids sniggering as you walk out.

Rebecca is waiting for you just down the corridor. "Come on," she says, "we haven't got long." She takes your hand and practically drags you down the corridor and into a storeroom. As soon as the door's shut behind you, she starts fumbling with your belt and seconds later your pants and trousers are down around your ankles. "I was right, you have got a nice cock," she says with her hand wrapped around the shaft.

You try to put your arms around her, but she shrugs you off, drops down onto her knees and without hesitating, she opens her mouth and sucks your cock in. At first, she just takes the head and you can feel her tongue working as if she's trying to push it into the slit, then she pulls back and looks up at you. "Don't hold back," she says, before engulfing your cock again.

Little bewildered at the speed things are moving, you just stand there at first she moves her head back and forth. Then you reach down, hold her still, and start fucking her mouth. She makes no attempt to resist you, even when you ram your cock right into the back of her throat. Of course, it only takes a few thrusts before you climax and pump jet after jet of spunk straight into her throat.

When you finish pumping and your cock begins to deflate, she pulls away, cupping her hand underneath it to make sure no dribbles end up on her clothes. You pull out the clean handkerchief that Mother always insists you carry, wrap it around your cock and pull your pants and trousers back up.

Rebecca has to get up on her tiptoes to kiss you and you can taste your spunk in her mouth. "We'd better get back to class," she says, pushing past you.

• You tell Janet about Rebecca