Sexy Fun Times/Laid/Park/Frame/Invitation

"Would you like to come back to the house," she says with a smile.

The kids seem unfazed by having me along and George just prattles on about some new toy he was given for his birthday. Sophie seems to be enjoying the pressure of his foot on her pussy.

There is a flight of steps up to the door, so you lend a hand with the pushchair. In the hall, George bails out and runs off to the downstairs toilet, while Susan carries Sophie upstairs, presumably on the same mission. "Why don't you give us a hand," she says.

Sophie has one of those seats that sit on the normal seat, and by the time you get there her shorts and panties are on the floor and she is sat with her legs spread wide apart, pissing a steady stream. You look at her and then at Susan, who seems to be unperturbed by the fact that a strange man is looking at the four-year-old's pussy.

"Come on Sophie, I need to go too," she says. She lifts the little girl off the WC and pushes her towards you. "Give her a wipe will you," she says and sits on the pan. She hands you the tissue and

Sophie tears off a bunch of tissues and starts dabbing herself. "Here, let me help," you say. There is an upright chair beside the washbasin so you sit on that and lift the girl onto your lap. Without being asked, she spreads her legs to allow you free access.

The door opens, making you start, but it's only George come in to see what's going on. "Go and get some of that cream for your sister," Susan says, and George nips out, only to return a few moments later with a tub of cream.

You are still not quite sure where all this is going and you just sit there with the half-naked girl on your lap. George passes the tub to Susan so she can unscrew the top and he scoops a good finger-full out, which he proceeds to smear on his sister's pussy. "They are like this all the time," she says. "I think their parents encourage them - they are some kind of religious nuts who believe that kids should be able to express themselves any way they want. I try to stop them doing this sex stuff but it seems to be getting worse.

George has decided to take his shorts off and is sporting an impressive boner. "Look at him, If he was a grownup, he's get arrested," Susan says. George scoops another finger full of cream and this time he slips it right into Sophie's cunny. Far from objecting, Sophie just giggles.

Susan convinces them to go down to the kitchen for some lunch and you join them at the table. You don't pay much attention when Sophie slides under the table and it's a bit of a shock when you feel a small hand sliding up the leg of your shorts. Before you can do anything about it, she has it wrapped around your rapidly swelling cock.

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