13 comments/ 181934 views/ 68 favorites The Gibson Sisters By: A_Non_A_Moose Billy rolled over in bed once more. The covers had been kicked onto the floor and he lay in only his boxers. He had returned home from his first year at University; only to find there was no work in his home town, so sleeping in until midday was becoming a habit. Today however sleeping in was impossible. In mid-June they were in the midst of a full on heat-wave and his room had become insufferably stuffy. Billy's eyes bolted open when he realized just what this meant. His neighbors the Gibsons lived next door. Mr and Mrs Gibson were well known in the community, taking part in various social functions. But this was not the reason why Billy was the envy of all his male peers. The Gibson daughters were well known by every boy (and man) in town for their exceptional beauty. The youngest was Amy at 18, then Charlotte at 19, Rose at 21 and Mary at 22. Amy and Charlotte were both very cute blondes, Rose was a stunning brunette and Mary was a striking red-head. They often joked that Mary was adopted, but you could see in the eyes that she was certainly from the same gene-pool. Rose was the one that all the boys drooled over; she had an over-powering sexuality to her that some girls just have. Billy however, had always had the biggest crush on Mary. She was the quietest of the four and always the most intriguing to him. She had huge expressive eyes that made it difficult for her to ever hide what she was thinking. This summer all the girls were living at home together before heading back to school in the autumn. With the jobs shortage and the heat-wave the girls took to spending a lot of time in the garden in very little clothing. Rose and Charlotte would always wear bikinis, whereas Mary and Amy were more conservative, wearing strappy tops and shorts. Billy's University days had been very 'active,' but once back home he found that his sex life was waning. There just wasn't the same amount of girls looking for sex. This left Billy with a worrying amount of sexual tension and after his year at University, masturbation was not doing the trick. One afternoon in early June, Billy was watching the girls from his window and decided to risk it and jerked off. He was in awe at the bare flesh on show before him, splattering his cum all over the wall beneath his window. His masturbation adventures had quickly got more adventurous, until he was in the garden, watching through a hole in a fence. On this particular morning Billy was feeling the full effects of his enforced celibacy. He jumped in the shower hoping this would quell his desires but they continued to rage in his loins. Slipping into his swim shorts, flip flops and some sun glasses, Billy wandered into his parent's garden with only one thing in mind. Billy's parents were both at work and no-one else was in as he took up his position next to his neighbor's fence. As he peered through he could only see Rose on her own walking round the garden, talking on her phone. Billy stared at her long legs carrying her in circles across the lawn then slowly he slipped a hand down his swimming shorts. His cock was already at half-mast and his skin felt soft after his shower. It wasn't going to take long until he was cumming and just at that moment, Rose dropped her phone. With her back to Billy she bent down to retrieve her phone, displaying her ass to Billy in all its glory, the wet material from her bikini bottoms clinging to every nook and crevice. Without realizing Billy let out an audible moan. Rose suddenly span round looking directly at the gap in the fence where Billy sat. Billy froze in fear, had she caught him? He didn't know. Billy's heart was racing but he seemed to have got away with it as Rose returned to talking on her phone then headed indoors. The whole incident had got Billy right to the edge, so he returned to jacking off in his shorts. Billy closed his eyes and jacked away when he heard the adjoining gate to his garden open. "I knew it" screamed Rose. She had hung up her phone and stared at Billy, sitting in the corner of the garden with his hand down his shorts. She walked with pace towards him then grabbed him by the arm. He removed his hand leaving his cock to tent his swim shorts. "You're coming with me, how long have you been watching us?" Billy didn't answer as Rose dragged him into the Gibson's house. Despite the horror of being caught Billy couldn't help but enjoy then feel of Rose's soft hands wrapped around his arm. Rose led him to a small room in the house where the other three girls were lying on the floor in their bikinis, with several fans on full blast. "Look what I found, I knew we were being watched" yelled Rose. She pushed Billy into the room, his shorts still tented by his straining cock. In his aroused state he couldn't help but stare at the three sweaty girls lying on the floor in their bikinis. Legs splayed around the room, breasts snuggled into the corner of tops and mounds of pussy flesh straining against wet bikini bottoms. It was truly a beautiful sight. There was an awkward silence, no-one knew what to do, certainly not Billy. The three sisters who lay on the floor, previously half asleep, were suddenly wide eyed and fully engaged. Charlotte was the first to speak. "Oh my God, is that his..." she trailed off; pointing at Billy's still very erect cock. "Yeah he was jacking off over me when I was in the garden. He must like me, I heard him gasp when I went to pick up my phone" Rose explained. "That's disgusting" Amy chipped in. Billy's head suddenly snapped out of his aroused state, he was mortified. "Look I'm really sorry, I won't ever do it again, please don't tell anyone. Just let me go and I promise I'll leave you alone." Rose, Charlotte and Amy giggled at his desperate pleas. They had barely heard a peep out of Mary as she sat in the corner staring intensely at Billy's tented shorts. Rose noticed this and saw an opportunity. "I think as you've seen all of us in, how should I put this, such an intimate way? I think it's only fair that we get a look at what's hiding under there" Rose exclaimed whilst pointing at his shorts. Mary finally spoke, "Rose what are you doing?" Rose ignored her sister's pleas and continued. "Go on; show us what you've got." Realizing he couldn't win, whilst feeling hornier by the second, Billy slowly slipped his fingers into the waistband of his swimming shorts. He looked up; all four girls stared down at his crotch. Billy closed his eyes then took off his shorts. His cock sprang free, bouncing in front of them. Billy had always been quite proud of his 7 inch cock, so he was not embarrassed about that and the girls were clearly impressed. There was an audible sigh as his member came into view. "Oh my" gasped Amy as she slowly began to rub the material over her pussy. Rose looked at Mary, her face was flush and her mouth hung open. Her legs were spread but she didn't touch herself. "Finish what you started" Rose demanded, "cum for us." Mary couldn't object this time, her arousal left her paralyzed. Billy didn't need asking twice, his right hand darted to his swollen member and he began furiously masturbating in front of these four beautiful girls. Charlotte had joined Amy and was masturbating along to the show. Billy's eyes darted from girl to girl; he had never been this close to them. He took in all the exposed flesh on show, legs, shoulders, cleavage; he could only imagine the delights that lay under their skimpy outfits. He looked over at Rose; she had a dirty smile on her face. "I know what you want," she said as she unclipped her bikini bra and let it fall to the floor. Her breasts were incredible. They hung on her chest perfectly with large pink areolas that Billy later learnt her sisters teased her about mercifully. Billy started to tense up, his hips thrust forward then he heard a gasp from Mary. He looked over at her and noticed her hand had slid down into her denim shorts, but he also noticed a tear roll down her face. "Take off your shorts Mary, it'll give you better access. I promise it will feel better" advised Charlotte. Mary nodded but she couldn't remove her hand from her pussy. Charlotte leaned over and tugged them down over Mary's long legs, revealing a pair of sexy red panties with a rainbow pattern over her crotch, tented by her busy hand. Realizing she no longer had his attention Rose grabbed Billy's free hand and pressed it up against her cunt. The warmth from her sex was too much for him. He let out a pained cry then blasted his semen across the room. Amy lay in the firing line, she squealed as his cum splattered up her legs. Realizing this and surprised by the force of Billy's orgasm, Rose got to her knees and took the rest of his load into her mouth and on her face. This made Billy groan again, making his orgasm even better than it would have been. Billy leaned against the wall behind him, despite the industrial fans in the room sweat poured down his face. He wiped it with his arm but that made no difference. Rose got up and left the room to wipe the sperm from her face. This left the room in silence, with only the heavy breathing of the three remaining sisters and the occasional gasp filling the air. "Are you okay Mary?" Amy asked. Mary nodded back. Billy didn't know this at the time but Mary was more frigid than he'd thought. She was devoutly catholic meaning not only had she never had sex, but she had also never touched herself. Her sisters had noticed how frustrated this made her and had been trying to convince her to masturbate for a long time. It took this afternoon's show to finally break her down. Rose strode back into the room; her bikini bottoms were gone, revealing a gloriously pink, shaved pussy. "We're not finished with you; can you get it up again?" Billy nodded, he knew his orgasm probably wasn't the end of it, but his heart still skipped a beat when she said this. Rose lay on the floor next to Amy and began masturbating along with her sisters. Taking her lead Amy and Charlotte removed their bikinis, showing themselves to Billy. Amy was shaved just like Rose, but Charlotte had a trimmed patch of hair above her slit. Billy could feel himself recovering already; his mind reeled away at what might be in store. "Come here" said Amy. Billy approached her. With her spare hand she grasped his cock in her hand. "He's already hard" she told Rose. Amy slowly rubbed Billy's cock back and forth then sat forwards and quickly took him into her mouth. Billy gasped; he couldn't believe how good she was. He always thought the Gibson girls were innocent, but they certainly had a different side to them, a side he was starting to love. Once he was at full mast Amy ordered him to lie down where she had been lying, between Rose and Charlotte. Billy did as he was told and Amy climbed on him, guiding his cock into her pussy. It all happened so fast that it took him by surprise as he slipped into her tight cunt. Despite her unexpectedly promiscuous ways Amy was still the youngest so she was still pretty tight. His cock stopped part way in leaving her to work the rest of his erection into her body. When he finally hit her cervix Amy paused for a moment before exclaiming "mmm, that feels nice." Amy began to grind her hips working the cock inside her. She was wild, Billy did not expect it. Her skin went a pinkish colour as she became more aroused. Billy loved the feeling of her hot pussy, she was superbly wet and with no condom he could feel every nook and crevice. Despite this Billy knew that if he was on top, he could control himself better. There was a chance he might be able to test out the other sisters and he didn't want to miss out. Grabbing Amy by the hips he swung her round and placed her legs over his shoulders. Billy was the one doing the thrusting now and the one in control. Charlotte reached over with her spare hand and began playing with Amy's right breast. Billy could not believe his eyes, especially as no-one else found this odd. To his astonishment Rose reached over and worked on her left breast, kneading her nipple between her fingers. After a few minutes of this Amy grabbed Rose's hand and pushed it down to her pussy. "Please, my clit, my clit" she gasped. Rose began rubbing Amy's clit and that sent her over the edge, Billy could feel it coming as her pussy flexed and clamped round his cock. After a few yelps Amy went silent and arched her back. She had several silent spasms then began groaning again as Billy continued to fuck her. When she calmed down Billy slowed down and slipped out of her pussy. She curled up on the floor rubbing herself a little. "My turn" yelled Charlotte. She looked at Billy's cock, dripping Amy's juices. "Fuck Amy, you're wet today!" Pushing Billy against the wall she kissed him passionately then rubbed his dick for a bit. "Don't do that or I'll cum" Billy asked breathlessly. Charlotte stepped back with a sly smile then spread her legs whilst standing up. Realizing what she meant Billy walked towards her then aimed his cock at her groin. Charlotte took hold of his dick then guided it into her as he held onto her gorgeous ass. She jumped up and wrapped her legs around him as he spun her round then began screwing her up against the wall. Charlotte was looser than Amy but this helped considering the way Billy was fucking her. She was also louder and dirtier. "You like my pussy? You like how it feels wrapped around your big dick? Make me cum big boy, make me fucking cum." Billy couldn't help but feel himself start to lose it; she had to cum quickly, or at least lose the ability to speak. Billy sped up, smacking into her cunt with wild abandon. He then slowed down, making several long slow strokes before speeding up again. This did the trick and she was cumming. She screamed out, Billy knew the whole street would have heard that one. Her finger nails dug into his shoulders as she bucked and screamed through her orgasm. When her body finally went limp, Billy lowered her to the ground and slipped out, he had made it through another. His reward was that of the girl that every man in town wanted to fuck, Rose Gibson. Billy was sure he wouldn't get through this one, he was going to cum. Rose sat up and smiled at him as he walked over. "If you cum, don't do it inside me. We're not allowed birth control, you have to pull out" Rose demanded. Billy nodded, suddenly realizing why the subject of condoms had never come up. Billy admired her perfect body. Buying time Billy asked if he could eat her out for a bit. Giggling, Rose spread herself, welcoming his touch. Billy knew a few tricks, he tried to tease her but she was already too horny and she thrust her pussy into his face. His tongue darted out as he spread her lips and began fucking her with his tongue. She tasted glorious, like no girl he had ever been with. Rose was gasping and letting out sexy little moans. She pushed him off and asked him to lick her clit. Billy did as he was told and sucked it into his mouth. This caused a long moan to escape Rose's beautiful plump lips. After a couple of minutes of him playing with her clit Rose pushed Billy off again. "I need you now; I need that cock inside me!" Billy climbed up her body then eased himself into her aching pussy. They let out long moans, kissed and then fucked. Billy was right, her pussy was incredible, it matched her outside beauty. Hot, wet, smooth yet also rigid. Billy's attention was drawn to Mary. She stared at the scene in front of her, red in the face and still rubbing her pussy underneath her red, rainbow patterned knickers. She still hadn't cum and Charlotte and Amy had realized this. Mary was paralyzed with lust, enabling them to slip off her remaining clothing. Her denim shorts were removed from around her ankles then her blue tank top was slipped off with just a little co-operation. Amy then smiled up at Charlotte and Rose as she grabbed Mary's panties and slid them down her legs. Mary displayed a full, red bush to the room. The sisters giggled but Billy was in awe, he needed to fuck her. Billy began searching out Rose's androgynous zones. He began by kissing her on the lips then moved to her ear-lobe. This did nothing so he moved to her neck, this hit the spot. As he kissed and nibbled her long, sexy neck, he could feel her pussy pulse around his dick. To her amazement, he quickly had her cumming. Her eyes bolted wide open as she gasped for air then began screaming out. Billy was having a hard time holding back as her pussy walls were doing their best to draw his seed from within his balls. Not to mention the effect her beauty was having on his loins. He wasn't going to make it, it felt too good, and she looked too sexy. In a last ditch attempt he bailed on her cunt like he was about to cum then stepped back letting her writhe around on the floor. "Oh, you asshole, why... did you pull out?" Billy lied, "I thought I was cumming, but I didn't." Realizing what he was doing Amy and Charlotte smiled at each other, things were about to get really interesting. As Rose stopped cumming the attention was all on Mary, quietly masturbating in the corner. She shook her head when she realized what was about to happen. "Come on sis it feels really good, his penis is fantastic" enthused Amy, "there will never be a better first cock; give it a go!" Billy couldn't believe his ears. First cock? Mary was a virgin? He knew she was the most religious but he didn't know to what extent. Despite how turned on he was, Billy started to feel guilty, he needed to know that she wanted his cock before he did anything. It was obvious that she did, she stared in front of her at the angry purple head, screaming for release. The girls reminded Billy that he couldn't cum inside her and that he had to pull out. Billy lowered himself towards Mary's quivering body. "Are you sure you want this?" Billy asked. Mary whimpered and nodded her head then Billy began kissing her. Mary was at least skilled in kissing and Billy noticed this as he guided himself towards her opening. Mary nodded again as Billy pressed against her slit then gasped as he pushed on through. Billy only got the head in and was taken back by the tightness, he could feel EVERYTHING! Over the next few minutes Billy gradually worked himself into the gorgeous woman in front of him. Her sisters lavished her breasts and legs with their attention. The girls hugged Mary when he tore through her hymen, wiping away the tears. When Billy eventually couldn't go in anymore he stopped. He paused and there was a silence. "Please fuck me" Mary whimpered. With that Billy slowly began working in and out of her. Mary was exceptionally wet so he was able to work up a rhythm quite quickly. Although unable to match the speed with which he could fuck Rose, Billy got a good speed together and soon Mary was on her way. "Oh shit he's making her cum" Amy excitedly shouted. But so was Billy, and at speed at that. He tried to hold back but realized that only made things worse. Billy glanced over at Rose; she nodded then began furiously working Mary's clit, trying to make her cum faster. Mary was climbing her orgasm, her walls working Billy's cock over. Billy eventually realized he had to give up as he reached the point of no return. The base of his cock flexed and he went to pull out. At that moment Mary came, wrapping her legs around him, pushing him back into her tight, virgin pussy. Billy's impending orgasm had left him weak and unable to break through the strong determined legs clamped around his flexing ass. In blind panic Billy screamed "No fuck... I'm cumming!" Then nature took over. Billy's hips bucked forwards, knocking over Charlotte who had tried to pull him free. His semen rattled up his cock then burst forth into Mary's unprotected cunt. Despite his earlier release his ejaculation was powerful. Billy was lost in the moment, only concerned with the feelings rushing through his loins. Three, four, five huge blasts coated Mary's cervix before Billy had the state of mind and strength to climb free of her grasp. As his cock slipped out of her pussy another pulse shot up Mary's stomach for all the girls to see. Billy fell backwards, jerking out what remained of his load onto his hand. The Gibson Sisters Ch. 02 The Gibson Sisters: Stealing Sperm This is the sequel to 'The Gibson Sisters,' it should stand alone, but do read the first part if you want to enjoy the full story - A_Non_A_Moose. * 5 Years Later Bill was close. He looked down at his beautiful wife Mary, her red hair bobbed up and down between his legs as her delicate mouth wrapped around his hard cock, gently coaxing him towards release. This evening, for the first time in weeks, they had the place to themselves. Mary's sisters Amy and Charlotte had taken the kids off their hands for the night. Sofia and Elle adored their aunts so that had been no problem, the real issue lay with Mary's sister Rose. Rose was a beautiful woman, even more so than when Bill met her for the first time back when she was 21. Her history with men however, was atrocious. Only assholes had the confidence to approach her, and usually they just wanted a fuck. Rose wanted a family, but once again she was sleeping in her sister's spare room, single and childless. The family's Catholicism didn't help, as all her parents wanted from her were more gorgeous grandchildren like Sofia and Elle. Mary was also still sticking to her Catholic upbringing, and despite being married for four years, Mary and Bill had only used condoms a handful of times. This evening was danger night. Mary was at her most fertile and horny as hell, Bill could sense this and it drove him wild. All either of them wanted to do was fuck, with no barriers between them, but the timing wasn't right, especially with Rose returning to their home. Tonight though, Rose was out with girlfriends, so 'danger night' was on. Usually Mary would go down on Bill first, finishing him off inside her mouth or letting him cum on her tits. In the past if Bill ate her out first he had the tendency to lose control and fuck her anyway, that's how their second daughter Elle was conceived three years ago. He had promised to pull out, but once he was inside there was no going back. Mary was starting to lose control herself; her pussy was literally dripping onto the bed sheets. She knew Bill couldn't last much longer, so she started to softly hum on his quivering member. Bill tensed and let out a cry. Quickly she lifted off him and messily stroked his throbbing erection. "You cumming baby? You got a big load for me? Lets get that pretty cock of yours flowing." Bill loved it when Mary talked like that, it was always a surprise, she was still the shy innocent redhead he met when she was 22, but since then she had learnt she loved sex. "Honey I can feel your willy shaking, let me finish you in my mouth," Mary dropped her head to her lover's cock to finish him off. Once she was ready to let him cum, it didn't take long. Her humming returned as she licked his frenelum and stroked his balls. Bill yelled out loud, he writhed beneath his wife and froze. His cock pulsed, his body shuddered, then his dangerous load exploded into Mary's mouth. A loud battle cry escaped from deep within his chest, causing Mary to giggle and lift from his cock as it continued to fire off in all directions. Bill didn't mind, she looked so cute stroking his cock, admiring the semen she had extracted from his loins. When Bill's orgasm died down he relaxed onto the bed. Mary milked what was left from his shrinking member, then crawled up to her lover's side. They kissed passionately, Bill could feel her hot sex against his thigh, she needed release as well, he looked into her eyes and they told him the same thing. Mary held Bill's face close and whispered to him "Sweetie I know it wont be the same, but after that I need something hard inside me, can you use something from my draw?" It was a good job she had just drained his balls, as her desperation was incredibly hot, it would have caused another accident. Bill reached into her draw. Shortly after she lost her virginity to Bill, back when he was known as Billy the boy next door, her sister Amy made her invest in a vibrator. Mary had started off small, with just a little toy that she could hold against her clit as it buzzed away. If she felt more adventurous she could quickly slip it inside her pussy, but that usually finished her off. Mary liked to be penetrated, she learnt this quickly, so once again with Amy's help she bought a bigger dildo. This one didn't vibrate; it was there to fill her up when Bill couldn't. This evening Bill knew she needed it and retrieved it from its hiding place. It was purple and only slightly larger than Bill's own impressive girth. He warmed it up in his hands before slipping it into her mouth. Mary gave it a quick suck then giggled "don't get jealous." Bill started to tease her with his tongue, licking her entrance whilst occasionally grazing her clit. Mary was well passed teasing now though, and begged him to fuck her with the big purple dildo. Bill looked up at her and smiled. He took it from her and began teasing her entrance. Her pussy seemed to slobber all over the toy, driven wild by the object of her affections. "Pleeeease," she begged. Bill couldn't do this to her anymore, he was starting to feel bad. He slowly eased it inside her, feeling her pussy walls working it over. How couldn't he be jealous? When the toy finally bumped her cervix her whole boy shuddered. "Ahhh my clit, my clit, please," she ordered Bill. He slowly began working his purple nemesis in and out of her gorgeous folds, whilst quickly rubbing her clit. It didn't take long before Mary came. Bill timed it perfectly and slammed the phallic object into her womanhood just as she tensed up and exploded. He then resumed the thrusting and rubbed her swollen clit. Mary had tears in her eyes, she felt so good, she really needed this release. Her pussy naturally worked the cock inside her, trying to make it cum. Biology dictated that if this thing could make you feel this good, then you had to have its babies, but biology didn't account for rubber. Mary didn't mind anyway, she had her own baby making machine at her disposal. Whenever she felt the need for another, it wouldn't take much persuasion to have Bill spraying his seed inside her. She knew it wouldn't be too long until it happened again, either Bill would mess up or she would get broody. She kept it a secret from Bill that she had deliberately wound him up the night Elle was conceived. Their prior history said that she would have control over him, and she was right. The wonderful thought of another impending pregnancy drifted though her mind as she shuddered, then after several violent pulses, she drifted into the familiar post-orgasm haze. "What are you planning?" Bill asked, noticing that scheming look on her face. "Never you mind, you want me to get rid of that?" she replied, pointing to his newly formed erection. "Sorry, I couldn't help it. That was too hot," Bill laughed, then lay down with his back to Mary. She reached over and wrapped her hand round his dick. She was amazed he was so hard already, it really was danger night. Mary softly kissed Bill's neck and nibbled on his ear as she stroked his cock. It only took a couple of minutes before Bill's breath caught in his throat and his second load of the evening quietly dribbled onto Mary's hand. ************************************************************************ In the following days Bill could not get the images from that night out of his head. Although she had really cleared him out, he still couldn't take his eyes off her as he prepared to go to work in the morning, and lustfully stared across the dinner table at her in the evening. After a few days Bill needed her and he hoped she knew, until one evening, everything changed. Bill arrived home early from work. As he walked through the house he was surprised that he couldn't hear his daughters chasing each other around or screaming. As he came through to the kitchen he found a note on the fridge from Charlotte: I've got the girls for the evening, I thought you could do with another night off. The note was finished with a smiley face that winked at him. Bill was almost instantly hard and slowly crept upstairs to his bed where he found another note. I'll be home soon, make yourself comfortable -- Mary. Hanging from the headboard was a pair of hand-cuffs, with another note telling him to use them. Bill was shaking with arousal as he removed his clothes and neatly folded them up onto a chair. He was so aroused he thought about knocking out a load in case he couldn't last, but he decided against it and sprawled out naked on the bed, clipping one wrist into the handcuffs. Bill lay in silence, his erection bobbed up and down along to his racing heartbeat. He was tired from work, and despite his arousal he soon drifted off to sleep. He wasn't sure how long he was out, but he woke with a jolt as a second set of handcuffs snapped round his free wrist. He noticed his legs had been spread and his ankles had been tightly tied to the bed posts with sheets. The room was dark barring a slight orange glow that filtered through the curtains from the streetlights outside. He also couldn't help notice the warm, naked body that sat across his chest. "Well this is a little different," Bill whispered, "my God your pussy feels hot against my chest!" Her only reply was to breathe slightly heavier. Bill noticed her scent was slightly different, but he couldn't mistake the perfume, a brand she wore specifically when she wanted to fuck. Before he could say anything else, she reached back and grabbed his semi-erect penis. Her hands were wet with her own juices proving that she must have been masturbating for quite a while. When Bill was fully erect he felt her lift off his torso and slip him into her soaking pussy bareback, taking him completely by surprise. He heard her breathing stutter in her throat as he knocked against her cervix. Bill didn't know the rules yet. It hadn't been long enough since danger night for this to be safe, he didn't know if he could cum inside her, not that he had any choice in the matter. Slowly she lifted herself up, before easing back down his cock. This continued for a few minutes as Bill's primal instincts took over, her bare walls sensually massaged the stresses of the day from his mind, and any control he may have had quickly disappeared. Bill was too horny to realize that something was wrong. He thrust into her pussy, slamming against her cervix, taking her completely by surprise. A gasp escaped her lips, followed by a quiet yelp; now Bill knew something was wrong. "Mary?" he asked, but received no response. "Mary, honey," he asked again, still nothing. Bill pressed his ass into the bed and thrust upwards on her down-stroke. A guttural grunt filled the room; he knew immediately, this was not his wife. "Who the fuck are you?" he demanded. Keeping herself impaled on his throbbing pole, the mystery woman leaned forward and flipped on a desk lamp. As Bills eyes adjusted to the light he quickly recognized the woman who currently had him balls deep in her pussy. "Hey lover," Rose giggled. Bill squirmed beneath her in panic, "what are you doing?" he screamed. Letting out another giggle, Rose squeezed his cock inside her pussy and replied "doing what I should have done years ago." As he tried to work out what she was on about, Bill continued to squirm beneath her, asking again what she thought she was doing, ordering her to get off him. Rose laughed, "I don't think you really want me to do that do you?" Again she squeezed his cock, causing Bill to moan out loud, "see, you want this." Bill hadn't been with another woman since impregnating Mary. Rose had been the last woman he had fucked before he came inside her sister. He had nearly knocked her up that day instead, but had managed to pull out just in time. Bill continued with his futile objections, "Rose get off me now, I'm a married man!" His voiced trailed off as she resumed sliding up his manhood. His eyes had adjusted to the light allowing him to see Rose's beautiful form displayed before him. Her very presence still oozed sex. Her long black hair ran over her shoulders, the fringe partially obscured her big eyes, so she flicked her hair out the way allowing her to stare down at her helpless prey. Smiling Rose bit on her plump, pink lips as Bill's eyes moved to her breasts. They were still as stunningly perky as they had been years before. He drifted further down her body to her tight stomach and hips. Her hips didn't flare as much as Mary, but she had an amazing bubble butt that looked great in a tight fitting skirt. He finally feasted his eyes on the gorgeous long legs that lay either side of him. Despite the conflicting emotions he couldn't help himself as he ran a hand up her right leg. It was so smooth yet fleshy. He quivered before immediately letting go. "No you have to stop this Rose" he tried to yell, but his arousal stifled any conviction. "Not going to happen Billy" she laughed, nobody had called him Billy in years, "tonight you are mine, I've been longing to get you alone like this for years, ever since I first laid eyes on that beautiful cock of yours." "You're insane!" Bill cried. Rose laughed, "You wish. Don't deny you haven't wanted to fuck me all these years. I've seen you staring before now, your eyes exploring my body with animal lust." "Please Rose, I love my wife, this would destroy her," he continued to plead. "Fuck it, she won't know. Just have fun, take the orgasm I'm about to give you and go back to your wife, why would she need to know?" "God will know!" "Fuck him too, I have the control right now, I have your cock inside me and not even he can stop you from cumming." Bill's resolve was starting to wane, the whole time this had been going on she had continued grinding on his cock, and he couldn't deny it, he was hornier than he had been in months. "What about protection?" he finally added, "I can feel how warm you are, you feel like Mary when she's in heat." Rose was getting lost in the sensations now; he really did feel just as good inside her as she remembered. "Let me know when you're cumming, and I'll climb off you." "Why should I trust you?" Bill gasped, but Rose didn't say anything, she just smiled seductively and picked up the pace intensifying the pleasure on his cock, stopping him from forming a rational response. Instinct had taken over, her unprotected pussy stroked his erection, milking copious amounts of pre-cum from his cock. Bill's hips thrust up with every down stroke, taking him deeper inside her womanhood. Her beauty was doing its job as well. He stared at her gorgeous face, her eyes beaming down at him as she continued to bite her bottom lip. Biology finally took over as he stared at the beauty attached to his loins. His sub-conscious, sure of her fine breeding credentials, forced him to the next level, and with that, Bill's orgasm began. "Rose," Bill gasped, "I'm going to cum, you have to get off me now!" Rose didn't move, she just continued fucking him, "just a little longer honey, I'm so close." "No Rose, you have to get off me now," Bill shouted. "NO!" Rose shouted back, "you will cum inside me and give me your sperm. You will give me my child, the child you should have given me years ago..." with that Rose came. Her body bucked on top of Bill's fragile cock. Bill tried all he could to hold on, but the fucking, her beauty, and basic human instinct, pushed him over the edge. Bill stared up at Rose for a moment as the throbbing between his legs stopped, just for a split second. Time seemed to stop as he admired her wild, sexual beauty. Suddenly everything sped up as the world exploded around him. A warm rush quickly spread through his body as his potent sperm violently slammed through his shaft and burst inside Rose's unprotected flower. His exposed cock was continuously massaged by Rose's own orgasm as pulse after pulse flowed from inside him, spraying her cervix. Blasts of cum rocketed from his helpless member, unable to control itself any longer. Rose cried out in triumph as she felt his warmth spread through her pussy, then came again as she felt herself getting knocked up. Bill's ejaculation eventually stopped and he lay defeated on his marital bed. Rose collapsed on top of him and began gently kissing his neck. Bill didn't react, what did it matter now? He had succumbed to his most basic primal urges and betrayed his wife. As they lay in silence they were both startled by a quiet sob from the doorway. As they looked across they spotted Mary, tears in her eyes, hand up her skirt. Rose laughed and climbed off Bill. She held her palm over her pussy to stop his load escaping; it was her prize after all. Then she lay on her back and held her legs to her chest, improving her chances of conceiving. "Told you I would break him down, he was powerless," Rose laughed. "Mary I'm so sorry I didn't know..." Bill begged before he was cut off. "Shut up Bill!" Mary snarled as she continued to rub herself beneath her clothing. "Join us, get out of that silly dress, let me see what I'll look like once Billy's sperm have had their way with me." Mary continued to quietly sob and masturbate in the doorway, "come on Mary, you can't be mad at him, you know the effect us Gibson girls have on men, they don't stand a chance! Once they're inside us, well; they cum, they cum really hard!" Rose laughed again, "and man he came hard, Billy fucking plastered my pussy with his load!" "You evil witch," Mary quietly uttered, "Tonight he was supposed to give me his baby, not you! Now my child is swimming around inside you!" "Oh Mary really?" for the first time Rose almost felt bad, "don't worry, we both know Billy will be good to go again in a few minutes," she added. Mary let out a muffled snarl then quickly removed her dress. Underneath she wore a cute, yellow, matching bra and panty set. The panties were soaked and clung to the outer folds of her sex. Rose stared at her sister; she was amazed at how good she looked. Only a few stretch mark scars dotted her stomach. Her long legs held up her perfect waist, flared at the sides, the perfect breeding machine. Mary reached behind and snapped off her bra, freeing her large breasts. They had grown during her pregnancy and somehow stayed that way. Rose noticed some light scarring where the girls had bitten her during breast feeding, this made her smile. Quickly Mary slipped her sopping panties from between her legs and discarded them to one side. To both Rose and Bill's surprise Mary ignored her husband and headed towards her sister. Lowering her warm, dripping pussy onto Rose's face, Mary whispered "my husband got an orgasm from you, now give me one, like you used to give Amy and Charlotte." For the first time in her life Rose was shocked by Mary's behavior. Mary had always stayed out of their experiments when they were younger, but had secretly wished one of them would make her scream as well. In their later years these sessions were infrequent, but Rose always wished Mary had joined in, if only to loosen her up a bit. Now Rose could see the animal that Bill had helped evolve, and it was fierce. Rose could only see Mary's eyes from underneath her sopping mound. There was a hint of apprehension on both sides before Rose took a deep breath, then licked Mary's pussy in one long, slow movement, giggling the whole time. That was all it took for Mary's legs to buckle forcing her onto her sister's face. Bill climbed over and lifted her up help so that she didn't suffocate Rose, allowing them to continue. Rose didn't need to start gently but she wanted to anyway. Mary's clit was already fully engorged, crying out for attention, but Rose only lightly licked around it, teasing her sibling. As Mary's arousal rose she desperately needed someone to pay attention to her clit, after years of repression, Mary's sensitive little bud had clearly invaded her consciousness, ruling her body and mind. Mary's hands darted to her pussy, only for Bill to pull them back and snap them into Rose's hand cuffs. Mary let out a primal groan that seemed to rise from deep in her pussy, causing Rose and Bill to share a knowing smile. The Gibson Sisters Ch. 02 Mary's eyes were shut, her head was flung back and her beautiful red locks flowed down her back, resting on Bill's quickly recovering erection. Bill licked and kissed her neck whilst kneading her C-cup breasts in his hands. Rose was starting to get aroused, and tired, she wanted a show, so with no warning she quickly brushed Mary's clit with her tongue. Mary bucked, almost loosing her footing again. Rose attacked her clit, causing a loud yelp from Mary. This continued for another minute before Rose finally focused all her efforts on her sister's clit and fired her over the edge and into her orgasm. The pleasure pulsed through Mary's body, a fire raging in her loins. Pulse after pulse shuddered through her whole body as she let out a quiet, juddering cry. Rose continued her assault until Mary whimpered and pushed herself off her sister's face, Bill removed the hand cuffs allowing her to collapse onto the bed. All three were silent as Rose and Mary caught their breath. "Am I forgiven?" Rose finally uttered. "Not yet, not by a long way," Mary replied, "but do that again a few more times and we'll see." Of all the responses Bill expected, that wasn't one of them. Whilst still in shock, Mary pointed at his hard-on and enquired, "That had better be for me this time." Rose giggled as Mary motioned for her husband to join her by spreading her long legs for him. Bill climbed between them and positioned his cock at her entrance. "You got any more in there for me?" Mary teased. "Plenty," Bill smiled back, then thrust his cock into his beautiful wife. Despite his earlier release, Bill was still amazed by the feeling of his wife's pussy wrapped round his erection, coaxing another child from within him. He didn't get to feel her like this as often as he would have liked, but when he did it was heavenly. Mary was also enjoying the feeling of her husband's naked cock stroking her from inside. She could feel the heat of his member spreading through her, the hard shaft twitching uncontrollably every now and then. Rose wanted to join in, but she knew this was between Mary and her lover. The irony of this was not lost on Rose as she smiled, then sat back to watch the show as she began gently rubbing her pussy. Bill was starting to pick up the pace, nature was taking control again. Mary wasn't far behind, her breath caught with every thrust. Her beautiful smoldering eyes stared up at her husband, she longed for him to give her another child. Bill caught her gaze and he stared at her beautiful face. He found her so incredibly irresistible, so sexy, he was madly in love with her. He couldn't help but be turned on by her gorgeous face, he stared into her large expressive eyes, and with that, he lost control. All three of them were taken by surprise when Bill cried out and thrust up against Mary's unprotected cervix. Mary smiled, she knew he hadn't planned to cum so soon, but her beauty had forced him into losing control. His cock flexed as he caught his breath, then for the second time that evening, he his seed showered the womb of a Gibson sister. Once Mary felt Bill's desire spread through her, she became lost in an orgasm of her own. He felt so hard inside her, pulsing, expanding, giving her his most precious gift. Sitting across from them Rose had continued masturbating and was now cumming with them. Her long neck arched backwards, thrusting her hips forward, longing to feel Bill's hardness inside her one more time. Rose knew they would never fuck again, but she also knew his child was quietly forming inside her fertilized womb. ********************************** It had been a strange few months since Mary and Rose had started to show. Rose had stuck to the story that she had no idea who the father was. Her parents were incensed, but Rose was a grown woman and they had no say in the matter anymore. Bill had found her a place of her own, and Mary had slowly forgiven her sister for her selfish actions. It was harder to explain when both women went into labor on the same day. Mary, with her two prior pregnancies gave birth first, in the early hours of the morning. Bill could not hide his emotion as he held his new born son in his arms. He was able to spend a few hours with Mary, baby Julian and his daughters Sofia and Elle before he headed over to accompany Rose. Her parents refused to see her but Charlotte and Amy were there. Bill was certain they knew the child was his; they smiled with just a hint of jealousy. Rose's labor was long and painful, as if to punish her for her sins. However all that was forgotten when her daughter Marie was welcomed to the world. Nine months after he was forced to cum inside his beautiful sister, he held his third daughter in his arms, and finally forgave Rose. The Gibson Sisters Everyone sat still for a moment, taking it what had just happened. The only sound was a few light whimpers from Mary as her orgasm ended. "You stupid fuck" screamed Rose. "I'm sorry, I went to pull out but..." he was cut off. Rose plunged her hand into Mary, scooping out as much cum as she could, she knew it was futile; but she tried anyway. With the focus away from Billy, he grabbed his clothes and bolted from the house. It did not do his cause any good that Billy went into hiding. None of the adults knew what had happened for the first couple of months. Despite feeling horrified about what he had done Billy still could not get the images of that afternoon out of his head. He didn't need sex anymore, the memories kept his balls well drained. Then a couple of weeks later, Rose hunted him down. Billy's Mum screamed at him to open the door, he knew who it was but couldn't risk her telling his parents. He sheepishly opened the door to reveal Rose standing on the porch with her arms crossed. "You never called" she teased. "The results are back, you knocked her up!" Billy shushed her and went outside, closing the door behind him. "Not so loud, my parents will hear." "They'll find out eventually and so will mine. They'll kick her out the house; they'll call her a whore." Rose was getting upset. "What do I need to do?" "Just speak to her, she's really upset, she has our support but I know she'd like to speak to you." That afternoon Billy met with Mary. They talked about what they were going to do. Even though her parents would kick her out, Mary wanted to keep the child. Billy knew this was going to be the case. Over the next couple of months they met up, talked, went to a movie or two and they soon realized that Billy accidently squirting inside her fertile womanhood was the best thing that had ever happened to them. They were in love. Pre-empting the inevitable, Mary and Billy confessed to their parents the day before Billy went back to University. Mary went with him and stayed at the house he shared with his friends for a few months before moving in with Billy's parents in the last few weeks of her pregnancy. Nine months after Billy accidentally came in the beautiful girl next door, she gave birth to their first daughter Sofia. The End.