***Author's Note - This is my first attempt at erotic prose, constructive criticism welcome. I have more ideas for these characters if popular I will do follow ups***
The low groan of the diesel engine echoed through the house as the car rolled out the drive. One whole week alone. It would be the longest period Mark would have away from his wife in almost a decade.
Jean was visiting a friend in Bangor. She received a call the previous Sunday, a tearful call from her old college roommate Rebecca. Having raised the courage to face up to, and throw out, her violent bully of a husband. Rebecca needed support and Jean would stay for a week to help her through it.
Only a week but Mark still felt that pang of loneliness. Theirs was not an exciting marriage, but Jean was always there. A constant presence in his life. They were still close, but more friends than lovers. Jean could never stomach Mark's thirst for sexual adventure. After 10 years together, 6 years married, he was lucky if they had sex once a month. He was frustrated but didn't know how to communicate it.
Not that he complained. Prior to Jean his sexual life was non-existent. With a slender frame Mark was never considered a stud. He lacked confidence with women in his youth. This improved in his 20s as he developed his physique through athletics. His muscles became toned, and while remaining quite slight his confidence grew. As life became busier the athletics fell away, and while his fitness may have declined slightly, he retained his new physique.
And so Mark spent that first Thursday night at home alone. At least there was football on the TV that night, that kept his interest, until it was over, then after some internet browsing, he went to bed. It felt strange being alone in bed. Mark found it hard to sleep.
Friday came and after a stressful day at the office, Mark was tense. It was a bright evening and so he put on his headphones and went out for a walk. Mark started down the country lane on which their house was built. This is nice, he thought to himself, with music blaring, the taste of fresh air, and not a person in sight, mark felt sufficiently detached from the world to relax.
Suddenly and seemingly out of nowhere Mark jumped to attention as he felt a soft cold palm on the back of his neck. He let out a small yelp and pulled down his headphones as the figure of a woman passed him by, stopped and hunched over with her back to him. Clad in tight fitting running gear, Mark's eyes were immediately drawn to the round firm bum and thin toned legs before him. The tight pink and black running trousers clung tightly to her body down to her knees, and Mark could see a bead of sweat run down her bare calf onto her ankle.
"I was calling you, but you seemed to be in another world!". Mark broke out of his temporary trance as he recognised the voice of his sister who lived less than half a mile away on the same road.
"Elaine, you nearly gave me a bloody heart attack!" complained Mark. But he knew he would be getting no sympathy the moment Elaine turned around, a cheeky smirk on her face. Elaine was a typical big sister, though there was only a year and a half between them in age, she always loved getting one over on her little brother.
"You should come out running with me, it would do you good while Jean is away" Elaine suggested.
"Ah, I don't know" replied Mark. He was far from out of shape, but he knew that Elaine would only want to use it as an opportunity to prove that she is better than him at running, she was always so bloody competitive. "I'll see how I am feeling tomorrow".
They chatted for a while longer. Mark still found himself glancing at his sister's fit body. Did she always look this trim?
As she got set to go again Elaine said "Richard is on night shift again tonight, I know you are at a bit of a loose end, why not call over later for a pizza and a glass of wine? "
"Sounds good, just a glass though" laughed Mark, he watched Elaine's thighs pump while she ran off in the distance.
They were not twins, but Mark and Elaine could hardly disown each other. Like her brother Elaine had a slender frame, pale almost porcelain like skin, rather delicate features and long slender legs. Her hair was dark where his was blonde. Without that and her natural feminine curves, they could probably disguise as one another. Elaine was now a mother of two but you would scarcely know it. Other than the growth of her breasts, a natural development from recent breastfeeding, you would scarcely recognise a difference in in her lean athletic body form her younger self.
When he got home Mark the image of his sister's body flashed in his mind. How did this happen? They grew up together and remained close. It wasn't quite love/hate but Mark and Elaine had a sometimes fraught relationship. Often arguing but never falling out. Understanding of one another, but teasing. They grew up as rivals. Their exam results always compared; every achievement met with poorly hidden resentment by the other. But behind it all they remained close and had in inherent trust in one another.
Yet when Mark thought back, there were moments. In their teenage years in particular, times when they walked in on each other in the shower, or when Elaine wore curiously revealing clothes when they were home alone. His mind wandered. But enough of that now. When he goes to visit her tonight, they'll slip back into their normal brother sister roles and all these thoughts will be gone.
Elaine was tired after her run. After meeting Mark, she ran another 5 miles. Now she was sweaty and sore. She could feel stiffness in her calves and thighs. As soon as she got home, she met her husband Richard going the other way. A brief interaction that only served the purpose of leaving her with the kids to feed and get to bed.
She thought about Mark's visit that night. It had been so long since she spent any free time with another adult. Even though she was sore and tired, Elaine was going to enjoy this evening, it could be the closest thing she gets to a night out for some time.
It was 8.30 when Mark got the text from Elaine "Putting the kids down now, I'm just going to pop in the shower, badly needed after that run, see you at 9.30." Mark felt a tingle of excitement as he couldn't help but imagine his sister in the shower. He shook himself out of it. He was visiting his sister, who he had visited a thousand times before, better stop those thoughts now.