As I may have mentioned before, Peter's imagination might get quite vivid - nothing to do with me :)

He stands shivering in the ice cold water. His arousal has slightly abated, but as his head clears, he still refuses to face up to what he's doing.

Instead, he turns the temperature right up. It's easier to ignore his conscience as the shower fills with steam, concealing all signs of his daily life.

Then his imagination takes over, and he loses himself in Carla's seduction.

She stands up, taking charge again as she presses him against the wall. He can't take his eyes off her mouth, her full lips, remembering the pleasure she's just given him. He smiles, but as her eyes flash with desire, it's hard to hold her gaze for long.

Looking down, his eyes fix on the circle of bare skin on her shoulders, the only part of her body visible beneath her top. He runs his fingertip along her shoulder blade, her skin so smooth, so erotic against his light touch. He longs to kiss her there, to run his tongue right down her body, between her legs. The idea thrills him.

But she demands his attention again, placing her hands on either side of his face, trapping him, kissing him forcefully, her tongue exploring his mouth, passionate and dangerous. Even if he wanted to move, he couldn't, but there's nowhere else in the world he wants to be right now.

Then she breaks away, and he feels her warm breath against his ear.

"Undress me" she says, her voice low, husky. It's not quite an order, but he has no intention of disobeying her.

He reaches down, his hands moving down her body, caressing her hips, lingering over her inner thighs. Slowly he lifts her top, pulling it over her waist then over her head, mesmerised by her beauty as she stands before him.

But she knows what she wants, moving his hands to her back, encouraging him to unfasten her bra. He lowers his lips to the softness of her breasts, kissing her again and again, his tongue teasing her as he takes her nipple between her lips. As she cries out, he wants to keep kissing her, pleasuring her, but she has other plans.

Her hand moves to the chain he wears around his neck. Then, hooking her index finger around it, she gently pulls, so he has no choice but to raise his face towards her. He laughs softly as he realises how effortlessly she's taken back control.

She kisses him again, forcing him back against the wall. He's unbearably hard now. As she leans into him, the pressure of her breasts firm against his chest, he can hardly contain himself, grasping desperately at her, his fingertips digging into her naked back.

Her face is flushed, her breathing uneven, and he can tell she wants him as much as he wants her. He feels the heat from her body, and all he craves is to be inside her, his cock sliding deep into her again and again, passionately, tenderly.

As she bites her lip, he sees the fire in her eyes and he knows she'll give as good as she gets. She'll match every move he makes, urging him on, moaning as he thrusts hard inside her, making him come like he's never come before.

Pressing his hips slowly against her, he tries to convince her that he can't wait much longer. She runs her hand along his cock, smiling at how hard he is and the way he gasps in pleasure, tensing at her touch.

He longs for relief, but she's making all the moves today. When she lets go, he just has to wait.

She smiles, moving his hands to her waist, helping him to remove her leggings and underwear until they stand naked before each other.

It's unspoken that he can't take her to the bed he shares with Leanne. But right now he doesn't care where it happens. He just needs to be inside her.

As if reading his mind, she spins them around so that she's against the wall, his arms tight around her waist, her legs slightly parted. She sways her hips slowly, and the friction drives him crazy, knowing he's so close to the pleasure he craves.

"Now?" she asks, her voice calm, but her eyes wild.

"Now" he whispers. He rests his forehead against hers, and they kiss one last time, deep and intense.

But he can't hold back any longer now, not with his cock pressing against her bare thigh and the heat of her body against him.

"Peter…" she murmurs as she reaches to him, grasping him, needing him.

And then she looks straight at him, her eyes becoming tender as she says the words he can't bear to hear.

"I love you so much."

And as he searches desperately, finding no possible answer, he realises he can't go through with this, even in his mind.

He opens his eyes, devastated as the reality hits him.

It's never just been sex Carla wants from him, it's love. But in the heat of passion, desire coursing through his veins, he's lost all awareness of how he really feels.

Suddenly the situation seems all too clear.

If he can't return Carla's love, then he'd be using her, as well as betraying Leanne. Yet if he does love her, does this mean his marriage is over?

He stares into space for a few moments, taking deep breaths, trying to take the edge off his lust to understand how he really feels. Maybe he can come to his senses, and discover it's just sexual. But he already fears that's not true.

He's stunned by the intensity of his emotions. This isn't some harmless fantasy. She's the woman he's supported for months. He's the man she turns to. An hour ago they were friends. Now he longs to make love to her.

He gets out of the shower, trying to clear his head, but as he towels himself dry, he can't hold back his imagination again. As he lets his mind wander one last time, his conscience takes over.

"You know Peter... " she says softly. "Me and you can never happen unless you finish with Leanne."

She's lying in his arms on the sofa, wearing her perfume top again. Her eyes are half-closed as he runs his hands through her hair. There are no games any more. He just wants to hold her.

"I know" he says. He leans over and kisses her forehead gently.

She looks up at him, her eyes hopeful in a way that almost tears him apart.

"And will you?"

He breathes out slowly, his shoulders sinking. It's impossible.

"I don't know…"

And with that, he's jolted back to reality.

He sits on his bed, unbearably torn between his wife and the woman he's falling in love with.

I hope you can forgive me for the anti-climax... I had written something else, but it just felt too wrong with Leanne in hospital, so I did some re-writing