"Any thoughts about what you would like for your birthday this year, Darren? It is only two weeks away. I don't suppose an Action Man would be quite the thing this time." Karen smiled at her only child.
Darren laughed. "No, I don't think so Mum."
Action Man had been his favourite toy for a number of years, but that was a long time ago. Darren was twenty years old now. How the years have flown, Karen mused. She decided to take the easy route for her son's birthday present this year. She would give him the money to choose his own gift.
Karen and her son were in the comfortable lounge of the house they had shared together since his father was tragically killed on an oil rig accident when Darren was only six. Karen knew that soon her offspring would fly the nest. She would miss him when that day arrived, but she wouldn't try to stop him.
"I'll make you a cake though. Twenty candles almost constitutes a fire risk so would had better be prepared to blow them out."
Darren laughed. "I would like that, Mum"
He sat quietly for a while before asking the question that had been on his mind.
"Mum, can I ask you something?"
"Of course, son, what is it?"
Darren took a long pause before replying. "Mum, there's this girl I met. If it's OK with you, I'd like to invite her to stay over for a couple of nights."
"That'll be OK with me son. We have plenty of room. I can make the bed up in the spare room...". Then Karen's voice trailed off as she saw the look on her son's face. "Oh, you mean..." Again, words failed her. Her son was obviously planning to share his bed with this girl who Karen hadn't even met.
Karen tried to imagine how her own mother would have reacted under similar circumstances. It was too horrible to think of. Yet Karen knew the world had changed since she was a girl. Karen and her colleagues at the library where she worked, often chatted about the problems of bringing up their children. She knew several parents who had given in and allowed their teenage sons and daughters to share their bedrooms with sweethearts. Darren was a good lad and although she had some misgivings about the arrangement, found herself agreeing.
"Yes, alright Darren, but be careful. That's all I ask."
Darren gave his mother a peck on the cheek. "Thanks mum. You'll like her. Her name is Amelia and she is a year younger than me. Can she stay over for my birthday and help me blow my candles out?"
"Yes, alright, Son. That sounds like a plan."
So, Amelia arrived two days before Darren's birthday. She was a pretty girl and polite to Karen. But with her mother's instinct, Karen detected another side to Amelia. It was hard to pin it down, but she was somehow too confident. Here she was, planning to sleep with her son, under her roof without any sign of embarrassment at all. No, she was just too self-assured for Karen to feel comfortable. But she shrugged the feeling off. If Darren was happy then Karen was prepared to set her maternal instincts to one side.
The evening passed well enough. The three of them had a TV meal on their laps as they watched a trending movie on Netflix. At 10.30, Darren took Amelia's hand and after kissing his mother on the cheek, led his girlfriend upstairs.
Karen tidied up then made her own way to bed. She propped herself up in bed, put on her reading glasses and started to read her current bedtime book. After a few minutes, she put the book down and snuggled down in her bed.
Then the noises started. First there was whispering, then the noise made by bodies moving around on the bed in the adjoining bedroom. The separating wall was paper-thin and every sound could be heard loud and clear. The movements became more frantic, accompanied by rhythmic bangs as the wooden bed head knocked against the wall.
Not wishing to hear her lovely, innocent son being aggressively shagged by this young tart, Karen pulled the bedclothes over her head to lock out the sound of the fornication in the next room.
"That's it! Harder! Fuck me harder!" demanded a female voice. There was no way to deaden the sounds.
The banging noises intensified.
"Do me harder, you fucker! Fuck my cunt. Give me your cock.!"
After more desperate movements there was a deep groan and the same female voice shrieked. "I'm cumming! That's it I'm cumming!"
Things went quiet for a while. Then, just as Karen was about to drop off, the copulating couple resumed their activity. Sleep was Impossible and despite her initial revulsion, Karen's fingers trailed down to her crotch as she visualised the scene that was being played out just couple of feet away. A few moments later, Karen was having to stifle the sound of her own climax.
At breakfast, the following morning, Amelia, unembarrassed at her noisy coupling the previous evening, chatted animatedly. Darren found it hard to look his mother in the eye.
The next night, the eve of Daren's twentieth birthday, the noises penetrating the thin wall were as loud as ever. Again, Karen gave up the idea of sleeping until the fucking was finished. Instead she fingered herself in time with the rhythm of the banging bed head.
On the morning of Darren's birthday, Karen went downstairs to get the breakfast ready, to find Darren making a cup of coffee in kitchen.
"Amelia having a lie-in?"
"No mum. She got up early. She had to go."
"Oh dear, I thought she was staying for your birthday."
"Well that was the plan, Mum, but something cropped up."
