TVR/Andrew3/Garden/Janet

You knock on her door and go in. She's lying on the bed and you think she may be crying, so you lay beside her and wrap your arms around her. "Are you upset Sis," you say.

She shakes her head. "I was just thinking about how so many things have changed recently. It's not just us, everyone is doing sex stuff, we just didn't know about it." She props her head up on one elbow. "Were you upset, watching him?"

You shrug. "A bit. At first, I was really mad, but then my cock got hard and I was just jealous. After what we did with Jim and Susan... I don't know."

"Anyway, after you ran off, I saw Mr Johnson fucking his wife in the kitchen. She was bent over the table while he fucked her from behind."

We are lying on our backs, side by side and she gets hold of your semi-hard cock. "Does it ever go down," she says with a giggle.

"Not when I'm with you," you reply with a grin.

"Do you think it's getting bigger," she says. She has her hand wrapped around the shaft, slowly sliding the skin up and down and squeezing.

You shrug again. "Could be. All the stuff we have done together. And with other people." A thought strikes you. Your father's huge cock sliding into Mary's cunt. "I hope it never gets as big as Father's though."

She giggles and catches hold of your hand to put it on her wet pussy.

You roll over on top of her, get on your hands and knees astride her and kiss her on the lips. You kiss for a long time and she looks so cute when you break off you feel a surge of love. "I love you, Sis. If you weren't my sister I would marry you," you say, feeling yourself going red."

You cover it up by transferring your lips and tongue to her budding little boobs and then working your way down to her sweet pussy, thankful that it isn't full of the gardeners' spunk.

"What's this about some party," you ask as you sit back for a breather.

Janet pouts. "Some Village thing. Susan says it's for a three-year-old, which seems a bit weird. Are you gonna keep messing about, or are you gonna stick that stiff cock into my cunt?"

You've been thinking about what she said about all the sex stuff. You hold your cock and gently slide it into her hot, slippery vagina. "Did I ever tell you about the toddler at the pool," you say, partly to distract yourself from cumming too soon.

"What toddler?"

You start to slide in and out as you tell her. "You know how the little kids at the pool are mostly naked? Well, it was a bit of a turn-on seeing their little cocks and pussies all around me. Then, when I was in the café there was a man with a baby - maybe a year old - I dunno. Anyway, he took me into an office out the back and I ended up fucking her."

"You. Fucked. A. Baby?"

She tries to get away, but you easily pin her down. She isn't trying that hard anyway. "It was a bit weird. The man, her dad I think, wanted me to. He put her on my lap while he went for a... to the loo. She was naked and somehow my finger slipped into her pussy and he saw."

Janet has stopped trying to push you off and lays still as you very slowly slide in and out. "So what happened then?"

"He took me into a back office, sat her on a desk and got her to suck me. I thought that would be it, but he wanted me to fuck her. I suppose my cock was in charge by then, so I did it. You were really tight the first time we did it, but fucking that baby was like being squeezed in a vice. It was quite painful. But the sight of my cock in such a small cunt was enough to send me over the top and I pumped so much spunk that there wasn't room for it inside her and it leaked back down."

The memory is having the opposite effect to the one you wanted and you soon feel the familiar tightness in your balls and concentrate on getting both of you to a climax. It seems that the more you do it, the more spunk you make and apart from what you squirt inside her, you splatter a liberal coating over Janet's belly and chest.

"When I start getting my periods, we will have to be more careful," Janet says as she heads for the bathroom and a shower. You lay back stroking your cock and thinking about Janet with her belly swollen with your baby.

• The party