TBaby/Jason/Veronica/First Thursday

Emily's class started at seven and lasted an hour, so she wanted you there for two hours from six o'clock and you are a few minutes early. She's wearing a bathrobe with the logo of a well-known hotel chain on the front. "I was just going to put her to bed," she says and you follow her in.

Ronnie is sitting on the couch, watching TV. "Her program finishes in a couple of minutes," Emily says and just as you sit down, the credits start to roll. Emily promptly turns the TV off. "That's it darling," she says. "Let's get you into bed. Look, here's Jason, he's going to be here while mummy goes out."

The little girl has clearly been warned about this and toddles over to stand in front of you. "Hewo Jay," she says. She's wearing a short-sleeved dress and her feet are bare. Clearly, she is thinking about your last visit because she lifts up the front of her dress. "Look - pink knickers," she says with a giggle and then runs away.

"Come on you, let's get you ready for bed," Emily says, picking her up and carrying her into the bedroom. When she gets the door, she turns. "Come on Jason, you can help," she says.

She carries Ronnie into the bedroom and almost throws her onto the bed, making her bounce. Ronnie squeals but it's obviously a regular game and she sits up to allow her mother to strip her dress over her head. Her skin is smooth and you can see her tiny pink nipples as she lays down on her back so that her mother can pull her knickers off, leaving her completely naked. You can't help looking at her little pussy as her mother bends over and blows a big raspberry on her belly, but then you quickly develop an interest in the books on the shelf as she stands up again.

Emily doesn't seem to care that a boy she hardly knows is looking at her naked daughter and she goes over to a drawer and takes out a pair of pyjamas. "I want story," Ronnie says as soon as she's got her feet under the duvet.

Emily takes a book off the shelf and then looks at her watch. "Do you think you could read her story while I get dressed," she says, holding out the book.

You sit down on the edge of the bed and open the book. Ronnie scoots over close to the wall. "You go here," she says.

"She wants you to sit up beside her so that she can see the pictures," Emily says, so you kick your trainers off and sit up on the bed, on top of the duvet. Ronnie snuggles up alongside you and you put your arm around her so that you can rest the book on your lap. The Very Hungry Caterpillar munches his way through an assortment of fruit and veg and by the time he turns into a butterfly, Emily is back wearing black jeans, black trainers and a black T-shirt with "Girls Rule" printed on the front. She wasn't wearing any make-up which you think is an improvement over what she normally looks like. "That's enough darling, let's get you tucked in," she says.

You go back into the sitting room and a few minutes later Emily comes back. "She goes out like a light. You won't hear a peep out of her now," she says. She waves an arm towards the kitchen. "Help yourself to a drink out of the fridge if you want one." She looks at her watch again. "You've got my number?" You assure her that you have and practically runs out of the door.

You sit down in the armchair and turn the TV on, but it's all news or boring soaps, so you switch it over to the radio so that at least you got some music, get your books out of your bag and start work on an essay that isn't actually due in until Monday. After half an hour, you go into the kitchen and look in the fridge. There's a can of Coke, but it's diet so you make yourself a cup of tea instead. When you go back into the room and put the tea on the table you look across at the bedroom door. "I'll just go and have a look to make sure she's all right," you think and carefully open Ronnie's bedroom door.

She's curled up on her side with her thumb in her mouth and her back to the wall, and she's kicked off most of her covers. You can't help thinking about what she looks like naked and the quick glimpse you had of her neat little pussy and you feel your cock begin to swell. You wonder if you can pull her PJ's down without waking her, but decide that's too risky. You open the front of your jeans, free your stiff cock and stand there stroking it and looking at the innocent little girl sucking on her thumb.

Looking at her thumb and then at your cock gives you an idea. "I wonder if I dare," you think and reach down to gently pull her thumb out of her mouth. You're ready to react if she wakes up, but she doesn't although her mouth keeps working as if her thumb is still in there. When you get down on your knees beside the bed, you're too low down, so you grab a cushion and kneel on that. Her thumb is already back in her mouth, so you gently pull it out again and, trembling with excitement, you press the head of your cock against her lips.

The boys at school talk about blowjobs, and one or two even bragged that they've had one although they're not generally believed. Ronnie is the first person, apart from yourself, who's ever touched your cock and just pressing the head against Ronnie's lips is almost enough to make you cum. You press it forward and without waking up, she opens her mouth and it's in…

The feeling is amazing, but afterwards, you're not sure if it was the feeling or the sight of your cock going into the little girl's mouth that set you off, but whatever it was you only just managed to pull it out in time before you flooded her with spunk. You catch most of it in your hand and go straight into the bathroom it off. You take a length of toilet roll and go back into Ronnie's room, hoping that you haven't left any evidence on her sheet. When you get back in, she rolled over onto her back and you use some of the tissue to wipe a few drops of spunk off her face and if a little went on the sheet, it can easily be mistaken for dribble.

"Was everything all right," Emily says when she gets back.

You're watching TV and confirm that Ronnie hasn't stirred. "I did look in on her a couple of times," you say, "and she was fast asleep." A few minutes later you're on your way out of the door with a couple of notes in your hand and an image in your head that you know you're going to be wanking to for a long time to come.

• Second Thursday