I spend all day Tuesday waiting for a ring of the doorbell, but nothing. No redheaded teenage temptress darkens my door. I can’t decide if it was a good thing or a bad thing.

Aoife has become a bit more outgoing and has dinner with us. I attempt to find out who the boy is but am shot down every time. By the time Friday comes around, I’m bracing myself for another confrontation but she doesn’t even ask if she can go out.

Saturday morning, Aoife announces she’s going shopping with Katie and can she have some money?

I reach for my purse and ask her what she needs it for.

“Me and Katie are going clothes shopping.” She plucks the note from my proffered fingers. “Something pretty.”

I smile a forced smile and watch her turn and leave.

“You spoil that girl,” Clodagh tells as she steps up behind me and wraps her arms around my waist.

“I know,” I sigh as I lean my head back against her, savouring the kisses Clodagh is giving my neck.

Clodagh slides her hand into my jogging bottoms, my usual Saturday morning slobbing out attire and drags a fingernail along my slit.

“I think we should make use of the empty house,” she giggles. I turn and show her my agreement by pushing her down onto the kitchen table and placing my face between her legs.

I adore Clogadh’s pussy and as I drag my tongue through her slit and savour her flavour as it explodes on my tongue, I begin to wonder how or why I ever got involved with Katie.

That afternoon, Clodagh has gone out to visit her aunt who is recuperating in hospital after a fall so I’m home alone when Aoife arrives back, laden down with shopping bags and with Katie in tow.

She calls out “Hi, we’re home” before marching up the stairs. Katie pauses at the foot of the stairs long enough to make eye contact with me and smirks a “Hello, Mrs O’Connor,” before turning and following Aoife up the stairs.

There is a lot of giggling and banging coming from Aoife’s bedroom and I try to ignore them and concentrate on preparing a curry for dinner. I’d wanted to make something new and spent an hour browsing through Madhur Jaffrey’s Indian cookery book that Clodagh had bought me several years ago as a Christmas present.

I’m rifling through the spice drawer, searching for cardamom seeds and cursing the need for seven different spices in one dish when the kitchen door opens and Aoife wanders in dressed in her dressing gown. I can’t be certain but I’m sure there are fresh marks on her neck that weren’t there this morning. She starts opening and closing cupboard doors.

“What are you looking for?”

“Batteries. I thought there were some spare AA ones in here.”

“Bottom drawer on the right,” I answer on autopilot.

It is only after she leaves that I think to ask her what she wants them for, and the answer comes into my head at the same time I remember why I knew where the batteries were. A vibrator.

I close my eyes and grip the edge of the kitchen island as I hear more giggles and shrieks from the bedroom.

My mind goes into overdrive. I imagine them playing with vibrators, teasing each other. The thought of Aoife with Katie makes me feel sick. I’m jealous. Jealous that my daughter is kissing and fucking her best friend. Kisisng the girl I’ve been secreting fucking for the past few months.

Curiosity gets the better of me. I open the kitchen door and listen. It seems quiet but then Aoife’s bedroom door opens and I hear footsteps across the landing to the bathroom. I begin to climb the stairs. Slowly, soundlessly, I make my way up the carpeted stairs, avoiding the third step which creaks every time you stand on it.

I’ve just reached the landing when the bathroom door opens and Katie comes out. She is wearing Aoife’s dressing gown and she stops dead in the middle of the hallway when she sees me.

“Hello Mammy,” she giggles.

She unties the belt and opens the gown.I gaze at her perfect teenage tits and the red curls I’ve grown to love over the past few months. Then just as quickly, she pulls the gown closed and heads back into Aoife’s bedroom. She doesn’t close the door properly and I can’t help myself. I walk slowly and soundlessly along the hallway until I am standing outside Aoife’s door.

I watch through the crack in the door as Katie lets the gown fall from her shoulders and climbs naked onto Aoife’s bed. I watch her kiss my daughter and listen to the noisy moans of teenage lust as they slide their hands over each other’s breasts. I hold onto the door frame. I shouldn’t watch, I know I shouldn’t but I can’t help it. For the first time in years, I gaze at my naked daughter. I realise with a shock that Aoife has shaved her pubic hair. Her mound is smooth and hairless in comparison to Katies’s red curls.

They’ve bought a rabbit vibe and Katie is now teasing the tip along Aoife’s glistening wet slit. Aoife is blushing and nervous but sits with her legs spread as the teenage temptress slides the rabbit over Aoife’s clit. She only brushes it a little but Aoife rolls her head back and sighs with obvious pleasure. Katie giggles and presses it in again, making Aoife groan some more.

I hear a car pull up on the drive so I slowly and quietly make my way back downstairs before Clodagh catches me perving on the girls.

I tell Clodagh of my suspicions, mentioning the new love bites and Aoife searching for AA batteries. Clodagh bursts into laughter. She puts her hands over her face and mutters “oh my god, oh my god, oh my god” before giggling and bouncing up and down on the spot..

“Well she was right that she wasn’t going to get pregnant anyway.” She laughs and hugs me. “Our girl really has grown up.”

I open the bottle of chardonnay that has been chilling in the fridge and pour two generous glasses. Clodagh stays in the kitchen and helps by setting the table. I raise an eyebrow when I see she has set the table for four. She sees me looking and grins mischievously.

She goes to the bottom of the stairs and calls up, “Girls. Dinner is ready. I’m afraid I’ve had some wine to drink so if you need more batteries, you’ll have to walk to the shops.”

I throw a dishcloth at her as she leans against the kitchen door, giggling hysterically.

The girls come down and sit at the kitchen table just as I am ladling curry onto the plates. They’ve both got dressed again and Aoife is making no attempt to hide the obvious fresh love bites.

“So, how long have you two been dating?” Clodagh asks, looking from Katie to Aoife.

Katie reaches across and holds Aoife’s hand. “Since the night of Stephen’s party. But I think I’d fancied Aoife before then.”

“And do your parents know?”

“No, I haven't come out to them yet. They aren’t as progressive as you two. They’re very traditional.” She turns her gaze from Clodagh to me. “You won't tell them, will you? It can be our secret, can’t it?”

I swallow. Another secret. I nod. “Yes, it can be our secret.”

“For now,” Clodagh adds. “I don’t like going behind your parents backs, Katie.I don’t want them blaming us for corrupting you when they find out.”

“Oh, don’t worry, you haven’t corrupted me.” That statement is obviously directed at Clodagh and I feel my stomach churn as I recall just what I have done to Katie.

“Anyway, here you go, Katie.” Clodagh hands Katie a plate of curry and rice. “You can eat this now so you don’t need to keep biting our daughter’s neck.”

“Mum!” Aoife cries. “You do are so annoying.”

Clodagh just grins. “What?” she syas when she sees my look of idsapproval.

“I’m sorry, Aoife.” I turn to Katie. “I apologise for my wife’s behaviour. She’s just easily excited.”

“That’s ok,” Katie smiles and takes Aoife’s hand. “We’re excited too.”

I have a forkful of curry half way to my mouth when I feel Katie’s foot stroke my calf. I stiffen, feeling a flush spread across my cheeks. I quickly swallow the forkful and reach for a glass of wine.

I lock eyes with Katie who just smiles back and drags her toe higher, slowly, sensuously, seductively caressing the back of my knee.

I know I should put a stop to this. Katie has upped the ante by getting involved with Aoife and I feel I can no longer trust her in the same way. But she’s so addictive. I feel all my resolve crumble as I gaze into those devilish green eyes peeking out through the mane of red hair.

“So, did Aoife tell you about the tryouts?”

“What’s this?” Clodagh and I both ask while Aoife shoots a glance at Katie telling her to shut up.

“The Regional tryouts. Mrs McMeneman wants some of the girls to go down to Galway for tryouts for the National team. They are holding tryouts across the country.”

Clodgh and I both look from Katie to Aoife.

“When did this happen, darling?” Clodagh asks.

“It hasn’t happened yet. The tryouts are next weekend.” She glances at Katie who just nods in encouragement. “But Mrs McMenamen thinks I have a good chance. She really wants me to go but I don’t want to.”

“Why not?”

“I don’t want to be away for a whole weekend.” She reaches across and squeezes Katie's hand.

“Oh darling, don’t be silly,” I say without really thinking. “It’s only a night or two. I’m sure Katie will cope without you.”

“I knew you’d be like this.” Aoife pushes her chair back and stands up. “Come on, Katie.”

Katie shrugs, smiles at Clodagh and me, then follows Aoife upstairs.

“What did I say now?” I protest but Clodagh just laughs. “Nothing,” she tells me, smiling. “You’re just being her mum and she doesn’t want to be separated from Katie for too long.” Clodagh pats my arm. “She’ll come around. It’d be great if she gets selected.”

I nod and start to clear away the plates.

“Bugger, I just remembered.” Clodagh puts a hand to her forehead. I’m away next weekend at that conference in Dublin.”

“That’s ok.” I shrug. “I don’t think they expect me to take her to Galway. Won’t they all go on a bus?”

Clodgah shrugs back as if to say ‘not my problem. I’m in Dublin’.

I lie in bed and listen to my daughter and my teenage lover having sex. I’d never realised how bad the soundproofing in this house was until I am forced to listen to the sound of teenage whimpers, moans and orgasms as Katie and Aoife demonstrate their youthful vigour and endurance. They finally fall asleep around two in the morning. Clodagh has slept through it all. While enjoyable, our own lovemaking didn’t last beyond one round.

I can’t sleep so I get up early on Sunday morning. I grab my running gear and hit the streets. It’s a beautiful morning and as I run out of town and into the countryside, I feel my stresses and worries start to float away. During the night I rationalised that Katie being with Aoife was a good thing. It would stop Katie’s infatuation with me.

As my feet pound along the country lanes, the early morning sun strobes through the hedgerows. I remind myself how good I have it with Clodagh. How Aoife would be grown up and moving out in a couple of years and Katie will be just a distant memory.

That future distant memory is however standing drinking a glass of orange juice when I get back to the house. She is wearing a pair of floaty looking lace shorts and the vest top does little to hide the swell of her breasts nor the prominence of her nipples.

“Good run?” she asks as she steps closer. She reaches behind me for a knife from the draining board as I inhale her scent.

I curse the fact I look hot, sweaty and middle-aged. My hair is stuck to me, thanks to getting caught in a rain shower half a mile from home.

“Not bad,” I concede, trying to squeeze past her and get in the shower. She places her hand on my crotch. I can feel her heat as she slowly rubs her hand along my slit.

“Katie, please,” I whimper.

“I’ve missed this,” she whispers. “I want this.”

“We can’t,” I try to protest. “What about Aoife?”

“You didn’t seem to mind about Clodagh.” Her eyes sparkle as she slowly moves her fingers over me. The tight spandex of my running shorts allows her to caress and trace my slit easily and I feel all my resolve slipping away.

“Are you working from home on Tuesday?”

I shake my head. “No, I have a couple of meetings.” The lie slips easily from my lips but I have to try and regain some control before it is too late.

“Pity,” she whispers. “Though the school is starting to ask about what is so special about Tuesdays.” She looks thoughtful. “Any other times?”

Her finger has awoken my clit which is screaming out, begging for me to find some time with her.

“This week is pretty choker,” I lie.

“Too bad.” She gives my clit one last caress before raising her finger to her lips and sucking it as she turns away.

I strip and dump my wet clothes in the laundry basket and turn the shower on.

As I stand under the hot water, the vignette in the kitchen replays in my head over and over. My own hand slips between my legs. I visualise Katie standing before me, her fingers slowly tracing my slit and teasing my button.

She is like a drug. She’s worse than heroin or how I imagine heroin to be. I plunge two fingers inside and grind down on the heel of my palm. My fingers squelch as they work their way in and out. I place one hand on the wall for support as I fuck myself harder. Deeper, harder and faster. Fucking myself the way I want to fuck Katie. The way I want Katie to fuck me. I want her. I want my daughter’s best friend. I want my daughter's girlfriend. I am in too deep. As the water pours over me and my legs begin to shake, I admit I am addicted to Katie.

As the ripples spread out from my core to consume me, I visualise Katie in front of me, her fingers inside me. Her tongue on me. I shake and jerk and spasm and finally slump down the wall and kneel on the shower floor.

Cold turkey is the only way. I need to cut myself off from Katie. This morning was a start. Telling her I wouldn't be home on Tuesday was a start. If I can avoid her then I won’t be tempted.

As I dry myself off, I feel better with myself and with my decision. I resolve to spend the day with Clodagh, with my wife, with the woman I am in love with and leave teenage temptations to the teenagers.

If only life was so simple.