Sexy Fun Times/Neighbour/Play

"Mum said you had a big one."

"Bigger 'n Uncle Jim?"

"Longer for sure, but maybe not fatter."

The girls are standing, one on each side looking down as you piss. Your brain has not yet caught up with what's going on. "Girls! It's rude to watch a man pee."

They burst into a fit of giggles and leave you to finish up. "Annabel had told them your cock was big? Thinner than Uncle Jim, whoever he is..."

You splash your hands and face, wrap your robe firmly around you and head for the kitchen to get that much-needed coffee. When you carry it into the sitting room the girls are sprawled on the couch watching kid's TV on your big plasma. You flop down in an armchair and look at them. The hair, long plaits hanging down their backs, bright eyes and snub nose are definitely from Mum, but the faces are rounder and you don't recall Annabel having freckles. "So which of you is which, and how can I tell," you ask.

One is sitting sideways, with her long legs stretched out and her bare feet pressed against her sister's thigh. The other is sitting with her arms wrapped around her knees, revealing a hint of pink panties. "I'm Lo," pantie girl says and you have to work out how to tell the difference yourself.

"It's easy," Dolly says. "I'm the nice one and she's the naughty one. Lo promptly grabs one of her feet and tickles it. "See what I mean," Dolly says when she has stopped squealing. You sip your coffee and study their faces. Maybe the freckles make a pattern?

"So Who's Uncle Jim," you ask.

Dolly scrunches up her nose. "Mum's big brother. He used to live with us but there was some trouble and we had to move," Lo says.

You establish that they used to live in a town some distance away and that Annabel has landed a really good job. She's getting a new car later," Lo says.

"So, what do you want to do for the rest of the morning," you ask.

• "Do you have cable," Dolly asks.
• "We could practice our cheerleading stuff," Lo says.