TBaby/The Thatcher Family/Veronica/Friday

When you got up this morning, Mummy was in the sitting room looking at something on her computer. She's frowning, but she does sometimes when she watches the news. "I've asked Uncle Jason to come this evening after tea," she says, closing the computer so you can't see what she was looking at.

"Are you going out?"

"No sweetie, I just want to have a talk with you and Jason about the games you've been playing."

At the nursery, Billy gets into trouble again for waving his willy about. Some of the other girls start teasing him and making him cry. Later on, during the quiet time after lunch, you sit down next to him. "I don't mind seeing your willy," you whisper.

"I play with it all the time," he whispers back, and sure enough, he's got his hand down the front of his shorts you can see it moving about.

"I play with my winkle too," you whisper. "Does your mummy play with it?"

He grins. "It's a secret. I'm not supposed to tell."

"My Mummy plays with my winkle too. Sometimes, she kisses it and it feels real good."

You look around to make sure no one can see, then you lift the front of your dress up and pull your knickers to one side so that Billy can see you stroking it and the good feeling comes a lot quicker because he's watching.

• Evening with Jason and Mummy