Aliens Use Sex to Invade Humans Ch. 05-07
Author's note: I received an e-mail requesting that I write a story about aliens taking over humans and creating insatiable sexual desires. The person requesting this story had read another story on Literotica entitled Hosts. He was disappointed that the author of Hosts did not write any more chapters after the first submission, which is why he asked me to write about this topic. This is the final chapter in this series.
INTRODUCTION
Four astronauts aboard the international space station are inhabited by alien hosts who use human sexual desires to re-populate their alien presence. The crew is returned to earth and after being briefed by the space agency they all return to their former lives. The alien's continue to use their human hosts to recruit other humans through the exploitation of sex.
Chapter 01 -- The International Space Station
Chapter 02 -- Astronauts are debriefed and return to duty
Chapter 03 -- Rachel returns to her family life
Chapter 04 -- Aaron meets his son's roommate
Chapter 05 -- Carl visits a gay bath house
Chapter 06 -- Sam resumes his private practice
Chapter 07 -- The alien population continues to grow using humans as hosts
CHAPTER 05 - CARL'S FIRST VISIT A GAY BATHHOUSE
Carl had never been to a gay bathhouse but he had heard about them and he knew what went on there. The alien in his body picked up on Carl's thoughts and directed Carl to go to the bathhouse. That Friday evening Carl made his first ever trip to the bathhouse and it was a night for all to remember. When Carl entered he paid a fee for a locker opting not to take a room. He stripped off his clothes and walked brazenly around the bathhouse without wrapping the towel around his waist. Carl looked better than he ever had in his life since the alien took over his body. He was lean and trim and his cock was longer and thicker than it ever had been.
Carl noticed that there were men all ages, sizes and shapes at the bathhouse and that many eyes were focused on him. Carl walked into an area where a large number on men milled around playing with each other's cocks and asses. Within seconds there was a hand on Carl's cock and minutes later his cock was in the mouth of a middle aged man. As Carl was sucked off a younger man fairly well endowed stepped up behind Carl and slipped his well oiled cock into Carl's ass. At that point the alien in Carl's body took over and minutes later Carl was cumming in one man's mouth while his ass was filled with another man's cum.
The alien entered the two bodies attached to Carl, one through the mouth and the other through the penis. The two men immediately felt the change in them as the alien took over two other hosts. Carl moved on and he spotted a very shapely ass on a young man who had a less than average size cock. Carl moved in close and slipped his cock into the shapely ass. The young man groaned as his rectum was stuffed with Carl's big stiff cock. Carl fucked the young man hard and fast and then ejaculated into the tight asshole. The young man felt the large load fill his rectum and he groaned loudly. Carl held the young man to him tightly as he ejaculated and allowed the alien to enter the young man's body.
The young man felt his body change as Carl held him tight and filled the young man with semen. The young man could not believe the change in his body as he muscled up and his cock grew in size. The young man watched in amazement as his cock stiffened into an erection that was at least 9" long and 5" around. He could not believe that it was his cock attached to his body. Carl then released the young man and moved on to find other prey. The young man looked at Carl and noticed that Carl's cock didn't go soft. The other two men that had sex with Carl also maintained erections as they moved about the bathhouse.
Carl walked into the sauna area and within minutes he had a cock in his mouth and one in his ass while his cock was sucked by another young man. As Carl was occupied in the sauna the other three alien controlled men had entered the orgy room with their 9" erections and they were immediately set upon by a group of men. Back in the sauna the alien was passed from Carl's body to three other men. The four of them sucked and fucked for several minutes before they all ejaculated. Then the three other men sensed the change in their bodies and watched in amazement as their cocks stayed hard and grew in size.
By now there were at least eight men walking around with 9" cocks and Carl's reputation had spread throughout the bathhouse. Everyone who had come in contact with Carl experienced a change in their body. They all became thinner, fitter and well endowed. As the night wore on more and more men were infiltrated by the alien and became a host for the visitor. That night no one left the bathhouse as everyone stayed until the sun rose. By the time morning arrived everyone in the bathhouse had been changed forever. Even the attendants had gotten in on the action and they too had engaged in sex and had been taken over by the alien.
The news spread quickly among the gay population and soon they were all flocking to the bathhouse. Within weeks every gay person in town had become fitter and well endowed. Sex at the bathhouse became rampart and its reputation spread quickly. Soon other gays from nearby towns came to spend a night in the bathhouse. The orgies became notorious as more and more gays participated in them. Then they would return home and populate their local areas with the aliens.
As the word got out several agencies including the space agency began to investigate the strange phenomena. The space agency quickly recognized that the four astronauts were heavily involved in the phenomena and that they might even be responsible for it. The agency then decided to keep a close watch on the former astronauts in their public life. They had already summoned Carl back to headquarters where they planned to run some tests.
CHAPTER 06 -- SAM RETURNS TO PRIVATE PRACTICE
While the space agency was working on Carl's tests they also kept a close watch on Rachel, Aaron and Sam. The agency knew that Sam had returned to private practice so they observed his patient population. Sam had opened his office in his home town and soon had patients coming to see him for routine medical care. Just the presence of so many naked bodies both men and women were fertile hunting ground for the alien.
Sam hired a young attractive girl as his receptionist and another young woman as his nurse. Sam's first mission before he began to see patients was to seduce the two women and pass the alien on to new hosts. The receptionist was a pretty blonde 19 year girl named Pam. She had a nice figure at 34-23-35. She was about 5'7" tall and weighed a fit 105 pounds. The nurse named Melanie was a little shorter than Pam at 5'5" and she weighed in at 100 pounds. Melanie had bleached blonde hair and she had a cute 33-22-33 figure.
Sam driven by the alien was immediately attracted to both women and he was anxious to fuck them both. Melanie who was a single mom and needed the job was the most vulnerable and she seemed willing to do what ever it took to keep her job. One evening during the week that they were moving into the office, Sam asked Melanie to stay late and help him with some things. Sam purposely had Melanie put his medical books away and when Melanie stood on the ladder to reach the top shelf, Sam made his move. He smiled as she leaned forward and her white skirt rode up to just below her ass cheeks displaying her beautiful legs encased in the white hose. Sam closed and locked the office door behind him. He walked over to the ladder and gripped it with both hands.
"I'll just steady this for you so you don't lose your balance," Sam startled her.
"Oh I didn't hear you come in, I'm okay you don't have to hold the ladder," Melanie embarrassingly replied.
"No problem at all," Sam said.
He looked up the ladder following Melanie's shapely legs up to her panties visible under her short nurse's skirt. Melanie knew that he could see up her skirt and there was nothing she could do about it. She placed the last of the books on the shelf and began her descent down the ladder. As she descended rung by rung, Sam fixed his eyes on the gap between her legs and her panty covered pussy. Melanie was beat red and she gasped out loud when she felt Sam's hands on her legs.
"I'll just steady you as you come down," Sam said as his hands slid up her calves.
Melanie was trembling and as she stepped down Sam's hands continued to slide up her legs. Sam's hands had moved over her calves to the back of her knees and then up to her thighs to her bare skin. One more step and Sam's hands moved under her skirt and covered her panty covered ass.
"Please don't" Melanie weakly protested.
She felt Sam slide his hand over her pussy mound and she trembled slightly. She realized that her panties were getting wet just as she heard Sam speak.
"Your panties are very wet we should probably take them off so they don't get stained," he offered.
Sam peeled her panties off her ass cheeks revealing her beautiful ass. He then pulled them from between her thighs where her legs were pressed together and down to her ankles. Sam had her lift up one foot at a time so that he could remove her panties from her ankles. He slid his hands back up to her ass and massaged it gently complimenting her on the beauty of her legs and ass. Sam slowly turned Melanie around on the ladder so that she faced him. He guided her down a few more rungs pushing her skirt up and exposing her blonde pussy. Sam tenderly stroked Melanie's cunt and slipped a finger into her hole. He tweaked her clit and Melanie grasped the ladder to stabilize herself. Her cunt was soaking wet and she knew that she should call a stop to this but she was afraid it might cost her to lose her job. Melanie decided to let Sam have his way with her.
Sam pulled her hips forward and kissed her abdomen. Melanie shivered and trembled as she locked her arms behind the ladder to maintain her balance. Sam kissed all around her pussy before licking her clit and inserting a finger into her cunt. Melanie was going wild as she humped Sam's face with her cunt and he ate her to multiple orgasms. Sam had both hands on her ass as he ate her pussy. The last orgasm caused Melanie to let go of the ladder and she found herself being carried to her desk. Sam laid her on her desk with her legs splayed wide.
Melanie watched as he unbuckled his pants and pushed his pants and underwear down to his knees. His huge cock jumped out and Melanie gasped in surprise of its size. Sam lined up his impressive tool with Melanie's quivering twat and eased it in. Sam took his time and kept feeding her more and more of his cock as he fucked her slowly.
Melanie was beside herself as she felt her cunt being methodically stretched to accommodate his length and girth. There was no pain but Melanie had never felt fuller in her life. Sam continued to fuck her slowly and soon had the entire 9" buried in her pussy. He made sure to keep his cock in constant contact with her clit and kept her in a constant state of arousal. Melanie was thrashing all over the desk having multiple orgasms. She felt Sam tense up and bury his cock to the hilt in her pussy. He then fired a barrage of cum into her hot pussy and she could feel warm jets of cum hitting the walls of her cunt.
The surge of his hot seed caused her to have yet another orgasm. Sam continued to fuck her slowly as they both recovered from their intense orgasms. He slipped his cock from her and remarkably he was still erect. Melanie felt the void in her cunt as his cock left her opening and she could feel his cum trickle down between her thighs. Then she also felt a strange sensation run through her body. Melanie was unaware that the alien had entered her body but she knew something was different. She suddenly felt younger and fitter and her tits strained against her small bra.
Sam turned Melanie around so that she was facing down on the desk with her feet on the floor. He eased his still erect cock back into her pussy and fucked her with long deep strokes. Sam pulled her blouse up and unsnapped her bra allowing her tits to spill out into his hands. He gently squeezed her now firm tits and played with her eraser sized hard nipples.
"You have the neatest, hardest little nubs," he said as he rolled her nipples in his fingers.
Melanie was getting turned on again as he fucked her and played with her. She was startled and her body went stiff when he inserted a well lubed finger in her asshole. Melanie thought to protest but thought better of it and after all it was just a finger. Sam's hands left her tits and he continued to finger fuck her ass as he fucked her pussy. With his other hand he began to tease her clit and soon had her on the verge of another orgasm. Melanie grunted and groaned as Sam fucked her with his big dick, tweaked her clit and reamed her asshole with his finger. She started bucking out of control while having her most intense orgasm ever.
Sam took advantage of her orgasmic state and slipped his cock out of her cunt and re-positioned it in her ass. Melanie's thrusting and Sam's continued pressure allowed Sam's cock to enter her asshole. By the time Melanie realized what had happened, Sam had buried the entire 9" in her ass. Melanie was now impaled on his cock and for the first time in her life she was being fucked in the ass. She couldn't understand why she was receptive to such a taboo act but now that she was a host for the alien she had no control of her actions.
Melanie just felt full now as any initial pain had subsided. She tried to relax and let him has his way with her. Sam continued to diddle her clit with one hand and tweak her tit nipples with the other as he corn holed her gorgeous ass. Sam loved watching his huge meat slide in and out of her bung hole. He felt another orgasm on the way and buried his cock to the hilt. Melanie could feel his hot cum filling her anal canal to overflowing.
As Sam finished shooting his wad he let his softening cock slip out of her asshole. It left her ass with an audible pop and Melanie could feel the cool air enter her channel. She could also feel his cum leaving her asshole and trickling over her cunt lips. She had collapsed on the desk in front of her and was breathing deeply as Sam massaged her ass cheeks as he took in her beauty. Melanie's ass was still clenching as she worked her anal muscles involuntarily and subconsciously ejected his cum from her asshole.
Melanie then suddenly wanted to be naked so she stripped off her nurse's uniform and stood naked in the office. Sam then stripped off all of his clothes and as he did Melanie checked out her body in the mirror. She liked what she saw although she did not know how or why her body had changed. Then she spread out over the desk again and beckoned Sam to her.
"Fuck me again," she pleaded this time.
"My pleasure," Sam said as he moved between her legs and slipped his still hard cock into her pussy.
PAM IS NEXT
Sam and Melanie fucked for hours that first time and since then Melanie seemed to be horny all the time. They would fuck each day after work and pleasure each other. Still, Sam was driven to seduce Pam and fuck the teenage receptionist. One day Sam invited Pam to dinner where he made sure that she had plenty of wine. After dinner Sam brought Pam back to his house to seduce her. Once in his home Sam led a tipsy Pam into his bedroom.
Sam led her over to the bed and hiked her dress up around her waist. He maneuvered her onto the bed and whispered in her ear that he was going to play with her ass. He then removed Pam's panties pulling them off her buttocks slowly as if he were unveiling an art masterpiece. He placed a pillow in front of Pam so that she could place her head on it and as she did she pushed her ass up and arched her back. The giddy Pam was now eager to be pleasured.
Before Sam began the seduction he stood behind Pam and took in her marvelous ass, so round, so shapely and so beautiful. Then as Sam knelt on the bed he noticed Pam's face aglow and her eyes wide in anticipation. Sam then began to explore her ass as he began to caress it, massage it and rub her cheeks. He pulled her cheeks apart slightly and revealed her sweet tight aperture. Then he ran a finger over her sensitive little bud and watched it quiver when he touched it. Sam then lowered his head and planted soft tender kisses all over her buttocks. Pam cooed aloud when she felt his lips on her backside.
Sam placed both hands on her ass and began to massage her buttocks again. Pam felt the tender but firm deep massage of his fingertips. Sam would push her ass cheeks together and then pull them apart to expose her sweet asshole each time. When he exposed her anus, Pam could feel the cool air on her rosebud. Sam again lowered his mouth to one of her buttocks and pressed his lips against it. Then he blew a steady breath onto Pam's anus and watched as goose bumps covered her skin. He took his time planting well placed kisses on her buttocks and then began a slow torturous journey toward the crack of her ass. Pam smelt so nice and so fresh. Sam's lips then came into contact with the crack in her ass and trailed a line of kisses down to her anus. Pam's body tensed as she was nervous, anxious and excited all at the same time.
Sam gently pried her cheeks apart wider exposing her nether hole even more. Then he lowered his lips to her anus and gently kissed it and caressed it with his lips. He repeated this act several times and Pam moaned aloud as her ass was pampered for the first time. Sam then moved lower and kissed the sensitive spot between her asshole and her pussy and Pam groaned again. He then extended his tongue and lightly licked the sensitive area as he continued the journey toward her pussy. Pam flinched at the first contact with her pussy as she was unprepared for that. Sam then began to lick a line from her pussy back to her asshole and then he flicked his tongue across her nether hole. Pam's body gave in to the incredible erotic sensations and craved more attention.
Sam took his time and spent many minutes repeating the actions that seemed to turn Pam on. His hands continued to massage her fabulous globes while his lips and tongue explored her asshole. Pam realized how much she like to be kissed, licked and gently nibbled. Her body would twitch and flinch at the long strokes from his tongue and her buttocks would tighten when his tongue probed her anus.
Pam lay on the bed and she could feel her heart racing and her chest pounding. Sam then leaned over and whispered to her again and told her how beautiful she looked with her ass pushed up high in the air. Then he began to explore her with his fingers. He placed his index finger on her tailbone and slid it down ever so slowly toward her puckered asshole. He probed gently with the tip of his finger and it fit perfectly in the entrance of her tight hole.
Pam tensed up at first and tightened her ass but then she relaxed when she realized that he was going to be gentle. Sam pressed his finger in gently applying a little pressure as his finger entered the outer edge of her anus entering it just ever so slightly. Then he probed a little deeper and wiggled inside Pam's ass. He then removed his finger and Pam felt its absence. Then she felt a cool substance on her anus and she realized that Sam had applied some sort of lubricant to her ass.
Pam felt Sam kiss her ass cheeks again and then his finger returned to her asshole and spread the lubricant around the entrance. Pam felt her asshole pucker up as it received the tip of Sam's finger and she wondered how it would feel when he finally put it in her. Her body ached with desire and she realized that she wanted more. She wanted to be touched, penetrated, and filled up and to be explored in her forbidden area. Sam's finger slid in deeper and Pam instinctively clamped her asshole around his finger. Sam held still in her and waited for her to relax before probing deeper.
Sam then wiggled his finger back and forth and let it slide out slowly to the first knuckle. Pam felt his finger slide out and she instinctively clamped her ass around it again, this time to hold it in place. Sam could feel her anal muscles clench his finger as if she were milking it and nursing it. Sam knew the battle that was going on within her body. The sphincter was designed to push things out not pull them in. Each time Pam relaxed her asshole, Sam pushed his finger in deeper until she clamped around it again. This process continued until he entire finger was buried in Pam's ass.
With his other hand Sam continued to pay attention to the rest of her ass. His hand wandered all over her shapely buttocks massaging and caressing her soft skin. At the same time he continued to slide his finger in and out of Pam's asshole and he enjoyed watching her anal muscles grip his finger each time. Pam's breathing had become labored and she began to rotate her ass in tiny circles as if to get the finger in deeper. Sam was in no rush as this is exactly what he had planned. He wanted Pam to enjoy every moment of the anal sensations. He wanted to work Pam into a state that she would beg him to fuck her ass or her pussy or both. For now though he was content to worship and devour her hot luscious ass.
Sam then lowered his face to her ass and licked her as he probed her with his finger. He took his other hand and reached under her to find her pussy and her clit. As soon as Sam made contact with Pam's hot wet pussy her body trembled as a wave of pleasure passed through her. Sam was very skilled at finding a woman's g-spot and he located Pam's instantly. Between on finger rubbing her g-spot, another diddling her clit and a third finger in her ass, Pam groaned loudly and her body shook with desire. She knew that she was close to her first orgasm.
Sam's two fingers in her pussy matched the rhythm of the finger in her ass Pam could feel all the fingers in her separated only by a thin membrane inside her. Sam pumped his fingers in and out and Pam went wild. Sam could feel her body giving itself over to him. It was his now to do as he wished. Her pussy was dripping wet, her ass clamped tight around his finger and her hips pushed back at him but Sam did not want her to explode just yet.
Sam suddenly removed his fingers from her holes leaving her empty. Pam screamed for him put them back in her, to fill her up again. Her eyes were wide open and she had a wanton look on her face. Her body was begging to be fucked but Sam was in no hurry. He enjoyed this moment and he savored her dilemma. Sam loved doing this to a woman, teasing her and prolonging her climax. He wanted Pam's anticipation to last as long as possible.
Sam then lowered his lips down to her hot ass and planted kisses all over it again. He massaged the smooth white flesh of her ass as he kissed it and Pam cooed. She longed for his fingers to be back in her. Sam moved his mouth directly over her anus and blew on her nether hole. Pam thrust her ass back into Sam's face as if to impale her ass on his tongue. Sam needed no further encouragement and his hands spread her ass open wide so he could probe her asshole. Sam stiffened his tongue like a tiny dick and probed Pam's asshole. He poked his tongue in and out of her ass then he covered her ass completely with his mouth and sucked hard on it. Sam began to lick, nibble and tickle the sensitive rosebud and Pam cried out in passion.
"Are you ready to cum, Pam? Do you want me to make you cum?" Sam teased her.
"Oh God yes, please make me cum, let me cum," Pam screamed back.
It was the first words they had spoken in over an hour. Sam then reached under her again and located her clit. Pam's pussy was sopping wet and Sam knew she was very close to a climax. He played with her puffy pussy lips as she diddled her clit and then he pushed first one, then two and finally three fingers into her pussy. Sam then pulled his mouth off her assed and pushed two fingers from his other hand into Pam's snug asshole. Pam gasped and swallowed hard at the new invasion in her ass but her state of desire and the lubrication facilitated the extra digit.
Sam now had three fingers in her pussy and two in her ass as he picked up the rhythm. The thrusts became deep and hard as he relished with the delight of devouring her ass and pussy with his fingers. Pam responded by pushing her ass back against his hands as she fucked back at them.
"That's it Pam, fuck back, fuck my fingers in your holes," Sam called out to her.
Sam finger fucked her two holes with both hands as Pam pushed back against him. He could feel the small patch of skin separating the three fingers in her pussy from the two in her asshole. Sam was getting carried away and he began to furiously fuck her lovely hungry body with his fingers. Then it happened and Pam exploded. She clamped down on the fingers in her body and her pussy spasmed as a massive orgasm rocked her. Pam screamed out loud with her mind blowing climax. Sam pulled his fingers from her asshole and replaced them with his mouth.
He could feel the hot moisture in Pam's pussy as it coated his fingers. Sam continued to lick her quivering asshole as her first orgasm subsided but hen another orgasm rocked Pam's body. This one seemed even more intense than the first and it caught them both by surprise. Sam kept his mouth on Pam's ass until the second orgasm had passed and she seemed to recover. With one last kiss on her cute little rosebud, Sam lifted himself up and looked at the beautiful Pam. She had her head turned to one side on the pillow with a look of pure lust and gratitude in her eyes.
Sam then stood up and removed all his clothes and for the first time Pam saw his cock and she was intimidated by the size. Sam moved around the bed and removed Pam's clothes so that she was completely naked now. He gently squeezed her big tits and tweaked her hard erect nipples as he complimented her on her figure. Sam had Pam remain in the same position on the bed and then he caressed her curvy ass again.
"I want to fuck you in the ass Pam. Do you want me to fuck your hot ass? I can see that your ass is asking to be fucked."
"Sam, I'm not sure, it's not right," Pam said nervously but she knew she had come this far and Sam would not take no for an answer.
Sam poured more lubricant on her ass and worked it into her asshole. Pam arched her back and pointed her beautiful ass back at him. He coated her asshole with a generous amount of oil and slid his thick finger back in her hole. He took his time preparing her ass relishing every moment. He then coated his entire cock with the oil and placed the head at the entrance to her anus. Sam pushed forward and the thick cock head squeezed into Pam's tight asshole.
Sam withdrew his cock head and then pushed it back in this time causing more pleasure than pain. He pushed until a couple of inches were in her ass. Pam found her self holding her breath and her body was covered in goose bumps. Sam was so thick that her asshole stretched to new dimensions and held his cock in a vice like grip. Sam slowly slid his dick in and out of her each time going a little deeper. Pam pushed back as if she were trying to poop as she knew that would make the penetration easier. Pam's brief pain had subsided and it was replaced with a feeling of fullness.
Pam relaxed a little and then felt more of Sam's cock slide into her asshole. She grunted out loud as she felt fuller and then a wave of pleasure passed through her body. She was convinced that Sam had his whole cock in her now but really he only had about half of his big dick in her. She felt so full so had no idea that he had about another four inches before he was done. Sam kept adding more and more of his cock to her ass. There was discomfort then fullness and then pleasure each time he went deeper. Pam would tense, relax and then enjoy it. This pattern continued until Sam had his whole cock buried in Pam's ass.
Sam reached around and played with her clit as he pounded her ass. Her pussy and asshole were on fire as the big cock reached previously untouched areas in her body. Pam was on the brink of another huge orgasm as Sam methodically fucked her in her tight anus with his sizeable cock. He loved watching his cock slide out of Pam's shapely ass and then plunge back in as his hips slapped against her curvy ass cheeks causing them to jiggle with each thrust. Her orgasm surged within her as he fucked her ass harder and faster.
As Pam came and came her entire body went into spasm. Her pussy convulsed and clamped around Sam's fingers coating them with her cunt juice. Pam's asshole pulsated as Sam drove his big cock in and out of it. Her ass involuntarily squeezed and released his huge member as he fucked it causing him to finally lose it. Sam slid his pecker deep into Pam's rectum as his cock spasmed and sent a thick stream of hot cum into her channel. Sam kept fucking her as load after load was fired into her ass. His cock kept twitching and spurting inside the impaled Pam.
Pam had never felt so full of cum and there was no where for it to go, blocked by Sam's swollen cock buried in her ass. He slowed his pace and eventually stopped allowing his cock to remain buried in Pam's ass. He did not go soft right away and he gently moved his hips pushing cum around in her ass. Some of it trickled out and ran down over her pussy lips. Pam then felt a strange feeling that something was happening to her body. Her tits all of sudden seemed firmer and there was a fire in her pussy.
Sam stopped and slowly withdrew his cock from her loosened asshole. He marveled in the sight of his impressive cock sliding out of Pam's shapely ass. His man seed flowed from her asshole and ran like a river down over her pussy and between her sweet thighs. Sam and Pam stayed in the same position for awhile and he massaged her beautiful ass as she remained on her knees with her ass perched in the air. Sam pushed down lightly on Pam's back causing her to accentuate her ass even more. He loved looking at it and playing with it as she cooed into the pillow. Sam's cock remained hard and looked menacing around Pam's asshole. He was thrilled that he finally fucked her beautiful tight ass. Pam looked magnificent with her just fucked curvy ass in the air. Sam could not resist sticking one of his fingers in her asshole and she just wiggled her bum instinctively.
Pam then rolled over on her back and Sam moved between her legs. Sam slipped his still hard cock into Pam's pussy and they fucked like rabbits. Pam had countless orgasms and Sam ejaculated in her pussy numerous times. Then Sam had to have Pam's ass one more time and she willingly moved back to all fours. Now that the alien possessed both Pam's and Melanie's bodies, Sam would focus on his patients. Pam and Melanie would assist in the seduction of many patients and the alien population would continue to spread.
CHAPTER 07 -- THE ALIEN POPULATION CONTINUES TO GROW
The aliens continued to acquire hosts at a rapid pace and they controlled almost the entire towns where the four astronauts lived. Incest was rampant among families and the high schools and colleges had daily orgies on campus with students and teachers. The space agency was now convinced that the astronauts had returned infected with a strange virus. Carl had been summoned to the space station for tests and he was under quarantine.
The agency director decided to experiment with some human contact and had selected a young man from the agency to interact with Carl. Suspicious that Carl would try to seduce whomever he came in contact with, the director selected a young effeminate looking man known to be gay. The interaction went according to plan as the agency team observed Carl and the young man Roger together.
Roger had expected to conduct an interview with Carl but he had no idea of what Carl was capable of. Roger was putty in Carl's hands and in no time they were both naked in the exam room. Carl guided Roger over to the exam bed and had him kneel down on all fours. Then Carl knelt behind Roger and he began to caress Roger's beautiful ass. Roger's body was delicate, hairless and flawless. As he sawed his fingers in and out of Roger's anus Carl was getting turned on as the alien directed him to bury his cock in the shapely ass. He moved closer to Roger and lined up the head of his cock with Roger's anal opening and began to ease it into to him.
Carl spat on his hand and rubbed his saliva all over his cock which made it very slick. Carl's cock head cleared Roger's sphincter and it slid right in without resistance. Roger's ass chute was warm and tight as Carl went deep into him. If Roger ever felt any pain he never let on that he did. Carl was all the way in Roger's ass and he started a slow fucking motion. Carl continued to pump Roger's ass with deep, long, deliberate thrusts as he caressed the smooth round ass.
Roger asked Carl to fuck him harder and quicker. So Carl picked up the pace and he started pounding Roger's ass faster and faster. Carl's balls started bouncing off of his Roger's balls and Roger was moaning with each thrust of cock. Carl could feel his climax building and he knew that any moment he would shoot his seed in Roger's ass. Carl tried to make it last as long as possible but once Roger started to contract his anal muscles Carl lost it.
Carl fired a barrage of cum into Roger's ass filling it to overflowing. As he continued to fuck Roger, Carl's cum backed up in Roger's rectum and began to ooze out flowing over their balls. Roger used his talented anal muscles to milk Carl's cock and drain it of all his seed. Carl didn't think that his cock would ever be soft again as he remained hard in Roger's tight sheath. Roger's milking action weakened him and Carl collapsed on top of Roger's body.
Roger flattened out on the bed with Carl on top and Carl's cock still in his Roger's ass. Carl rolled off of him and his hard cock slipped from Roger's ass. Roger rolled to his back and spread his legs lifting his knees to his chest. The alien had now entered Roger's body and was in control of the host.
"Fuck me again," Roger begged.
Carl moved between Roger's legs much like he would fuck a woman and lined up his still erect cock with Roger's asshole. Roger was also as hard as a rock and his beautiful cock pointed toward his head. Carl pressed slightly forward and his cock moved into Roger's hot ass again. Roger's ass actually pulled Carl inside and the cock went all the way into Roger's ass as Carl's balls rested on Roger's ass. Roger than gasped in surprise as he felt his body change and he watched his cock grow right in front of his eyes. Roger stared in disbelief at his cock as it grew from his average 6 inches to a thick 9 inches. The agency team also watched in awe as Roger's body changed right in front of them.
"God, that feels so good, fuck me," Roger cried out.
Roger's ass lifted off the bed and Carl's cock was fully embedded in it. Carl pulled back a little and pushed forward. Roger groaned as Carl began to slowly fuck him, each time taking a longer stroke. Carl's cock head would come out to the edge of Roger's asshole before he pushed it back in. Their fucking was making a sucking sound. Each time Carl's balls slammed against his nurse's ass, his body and Roger's ass made a wet slapping sound.
Carl was so fucking hot that he crammed his cock fully into Roger. Roger held Carl's cock and massaged it with his anal muscles; Carl knew he was not going to last very long even though he had already cum. Roger humped up against Carl fucking him back as Carl fucked him. Their room smelled of sex and sweat. Carl reached down to stroke Roger's cock but Roger grabbed his wrist.
"No, I want to cum just from you fucking me," he said and pushed the hand away, "Just keep fucking me."
Carl took slow long strokes in and out of Roger's ass as Roger pushed up into him more and more. Soon Roger took control and just fucked Carl's cock. Carl let Roger fuck him with his ass muscles. Carl's actions became more erratic and his thrusts shorter and more powerful. Roger was grunting as Carl's cock slid in and out of his hot ass. Soon Carl's cock was barely staying in Roger's ass. Then Roger slowed down and let the cock just press against his prostate. Roger announced that he was cumming. Carl felt Roger's cum shoot between their bodies covering their chests and abs and then oozing out around their pubes. Carl slammed his cock into his Roger's loose wet hole and he felt his balls tighten again. Carl pressed deep into him and his seed filled Roger's ass.
"Yes cum in my ass again. Oh I feel it, I feel your hot juice," Roger groaned.
Carl pulled, pushed and cum spurted into Roger making his hole wetter and warmer as Carl's cock easily slid in. Carl continued fucking him until his legs were weak and he stopped cumming. Carl's cock slipped from Roger's ass and remarkably they were both still hard. The agency observed the action between Carl and Roger as the two men seemed insatiable and fucked for hours.
The agency had part of the answer now as it was confirmed that the virus was transmitted by sexual intercourse. Now that they knew how it was spread among humans they had to figure out how to kill the virus. The rest of that day they would put their heads together and try to determine how to deal with the alien virus.
THE SPREAD OF THE ALIENS IS SOLVED
Sam and his assistants, Pam and Melanie had been successful in seducing both men and women and spreading the alien to new hosts. Pam and Melanie had no trouble seducing the male patients who loved fucking the hot women and loved the change in their bodies. The male patients would go home after the doctor's visit and they would fuck their wives, girlfriends and daughters spreading the alien to more and more hosts.
Sam was successful seducing many of the women patients and they loved the change in their bodies. They too would return home and fuck their husbands, boyfriends and sons also spreading the alien population. A few times Sam encountered a gay patient but he had no trouble getting the patients to suck his cock or accept his cock in their asses.
The population was getting fitter and hornier every day. The women were looking beautiful with their firm bodies and perfect shapes. The men were fitter and they were all well endowed and had developed an incredible capacity for sex. The space agency then called Aaron, Sam and Rachel back to headquarters and quarantined them so that they could be observed.
The team studying the issue closely determined that prolonged exposure to the sun might just be the solution so they arranged a test case. Carl was escorted to the beach accompanied by a handsome young man named Fred. As they sat on the beach the alien began to take control and directed Carl to seduce Fred. Carl began to make advances toward Fred who was not gay. Fred tried to avoid the advances but Carl was insistent.
At one point Carl whipped his swim suit down to his knees and his big thick nine inch cock sprung out. Fred moved away but Carl jumped on him, pinned him to the sand and ripped Fred's bathing suit from his body. Fred screamed for help as Carl tried to shove his cock into Fred's ass. However with his anus dry and taut, Carl could not penetrate Fred's asshole. Carl then reached for the suntan lotion to use it to lubricate Fred's asshole but as he did Fred was able to break free.
Fred ran into the ocean as he was an excellent swimmer. Fred's swimsuit fell from his body as the naked Fred dashed into the water. Carl grabbed the lube, kicked off his swim suit and chased after Fred. The onlookers were shocked to see the two naked men running toward the ocean particularly with Carl's big dick bobbing in front of him. Fred had cleared the breakers and was swimming steadily away as Carl hit the water. Carl cleared the breakers and then his body went limp.
All of a sudden Carl had no energy and he felt his body change. He started to feel ill so he turned back and left the water. Carl then realized that his body had returned to its original form before the alien had taken over. His cock shriveled and became soft as it returned to his average size six inches. His paunch reappeared and he definitely felt older and out of shape. Fred stayed in the water and watched as the change came over Carl.
Just then the authorities arrived to arrest Carl and Fred for nudity on a public beach. The two of them were taken into custody and transported to the local police station. Fred notified the agency about what happened and where they were being held. Representatives from the space agency arranged for Fred and Carl to be released into their custody and returned them to headquarters.
To assure that it was not an isolated case the agency had Aaron, Sam and Rachel exposed to sea water. The results were the same as the three astronauts also returned to normal. The agency then put a task force together and arranged for all areas known to be exposed to the alien virus to be treated with pure and simple seawater. In time all populations returned to normal and the alien virus had been eliminated.
The agency would then make sure that all astronauts returning from the space station would be decontaminated with seawater along with the normal procedure. It had been quite a scare for the agency and the populace. Who could ever imagine what the planet would have become if a cure had not been found? Would have the people been happier with fit bodies, big cocks and insatiable sexual appetites? We will never know.