"Oh yeah! Like that, more, more, more! Oh God Fuck me! YEAH!"
Andrew tried to bury his head under his pillow but it was no use. There was no chance of him getting any sleep with the noise from the room next door. Especially with the house's paper thin walls. There were a number of advantages to living at home while studying at University, no problems with rent or food and his mother still did his laundry. The downside was having to listen to his twin sister Rebecca's sexcapades night after night.
Rebecca brought home a different guy practically every night, dragged him back to her room and fucked his brains out for hours at a time. Andrew tried not to be judgmental; after all it was just sexism that made guys into studs and girls into sluts if they had a lot of sex. As long as she was careful Rebecca could screw whoever she liked. Andrew just wished she could do it at their houses and keep the noise down. He had long since abandoned late night essay-writing. He had tried head phones, but music was almost as distracting as sex noises. Earplugs didn't seem to help either, as the wall would periodically thump as Rebecca's bed slammed into it. How his parents didn't hear it was beyond him. r perhaps they did and just turned a deaf ear.
"Oh for God's sake just shut up," Andrew moaned to himself through gritted teeth. Perhaps he should have said something, but it was difficult enough to imagine his little sister (Rebecca was thirty minutes younger than him) having sex at all. Especially when Andrew was still a virgin at twenty. It wasn't that he was nervous with girls or anything, he just never had much interest.
Andrew dragged himself out of bed and headed out onto the landing. Maybe if he went to the toilet Rebecca would hear him and think to fuck more quietly. Some hope. Andrew walked across the landing, fighting the instinct to muffle his footsteps. As he walked past he noticed that Rebecca's door was slightly ajar and for some reason he found himself glancing inside.
There was no denying that his sister was attractive. Her breasts were round, firm and large, without being ridiculously oversized. She was slim, but not skinny and still quite curvy, with a firm round ass and main of thick red hair. She was sitting on top of her latest sexual partner riding him frantically. Suddenly she glanced towards the door. Andrew darted out the way embarrassed and hoped he hadn't been spotted. He quickly entered the bathroom. His penis was making a tent in his boxers. Andrew tried not to think about his sisters naked body as he waited for his erection to subside.
After peeing, Andrew found himself pacing around the bathroom trying to find something to do. He had no intention of going back to bed; he wouldn't have been able to sleep and in any case the last thing he wanted was for Rebecca to spot him and really think he was a pervert. Andrew lowered the lid of the toilet seat and sat down on top of it resting his head in his hands, because of tiredness rather than despair. He couldn't say anything to Rebecca or his parents, but a few more sleepless nights were going to kill him.
Andrew's head grew increasingly fuzzy as he tried not to stay awake, but he was finding it harder and harder to think.
He woke up all at once with a jolt. He was sitting up, no kneeling up, the lights had gone out where was he? He felt something between his legs and looked down. He was naked and was sitting on Rebecca's boyfriend and what was worse he had breasts. He was a woman, no worse he was Rebecca. She was riding up and down as her boyfriends rock hard penis thrust inside her. Andrew realised that he couldn't control how his, or rather her, body was responding. He hadn't become Rebecca, he was just a passenger in her head.
Her boyfriends thrusts continued. Andrew could feel her pussy, it wasn't like anything he had ever felt before. Like masturbating on the inside somehow. It was incredible. Rebecca grabbed her breasts, and Andrew felt a jolt as she tweaked her sensitive nipples. He gasped and at that moment so did Rebecca.
"Oh God Fuck me you stud! Yeah! More! like that!" Rebecca exclaimed. Andrew realised why she was so loud, this was intense. He was building up energy he had to release. He could feel it reaching a peak, any minute now she going to...
"I'm coming," Rebecca squealed. Then she let out a shriek, not of pain but release as it all came out. Her body shuddered and Andrew found himself sharing his sister's orgasm. The sensation that started inside her and spread out all over her making her tingle. She collapsed on to her partners chest gasping for breath. His cock still spasmed inside her, they had come together.
"Oh my God," thought Andrew, "that was incredible." Suddenly, Rebecca sat up
"Andrew?" she said, startled. She looked round at her door. "Andrew you perv, are you there?" she hissed.
"What?" her partner asked blearily.
"Nothing," replied Rebecca dismissively, rolling off him onto the bed. "I thought I heard my pervybrother outside."
"Twisted," the guy said, before rolling over to face away from Rebecca and promptly drifting off to sleep.
Rebecca lay back looking at the ceiling. Andrew was still a passenger. How the hell was he going to get out of this he wondered.
"Andrew?" Rebecca hadn't spoken, Andrew could just hear her thinking. "Shit, are you in my head."
Andrew tried not to think, to let his mind go blank.
"You are, you're in my head," his sister thought. "How the fuck did you that? Shit, were you in there while we were screwing? You pervert, get out, get out now!."
"I can't," Andrew tried to think. But at that moment there was flash of light and he found himself back in his body back in the bathroom sitting on the toilet seat. He stood up and found he had come in his boxer shorts. He grabbed some toilet paper and tried to clean himself up quickly. Then he crept back across the landing as quickly and quietly as he could.
As he passed Rebecca's room he couldn't help looking inside. His sister was sitting up in bed and looked accusingly at him as he walked past. Andrew hurried back to bed and buried his head under the covers. He half expected Rebecca to storm in and attack him, but he was left alone. The experience must have freaked her out as much as it had freaked him out.
* * *
Breakfast the next morning was an uncomfortable experience. Rebecca and Andrew weren't talking to one another, or even looking at one another for that matter. Their parents carried on regardless, assuming that the twins had had one of their frequent arguments. Rebecca stormed around the kitchen pointedly ignoring Andrew as if he didn't exist. Andrew just paid very close attention to his cornflakes.
After their parents had left for work, things hardly relaxed. Andrew sat for about two minutes of painful and heavy silence before getting up from the table.
"I'm off," he mumbled as he headed for the door.
"Andrew," Rebecca ordered. "What the hell happened last night?"
"What?" Andrew replied, trying to sound confused.
"You were in my head," his sister replied, "I could hear you thinking."
"I d-don't know what you mean," Andrew replied.
"Crap," his sister retorted. "You're a lousy liar Andrew, you stammer and look at your feet. You got in my head while I was having sex, you perv. How in the hell did you do it?"
"I didn't do it," said Andrew, defensively, "it was completely non-consensual. I was just in the bathroom and then I somehow got transferred into your body."