His Wife's Sister Ch. 03

As Mark hovered over top of her, Amy stared into his eyes, trying to read his expression. She couldn't believe this was about to happen, and she almost felt like she was having an out of body experience as the seconds seemed like hours. Mark's cock was inches away from entering her aching pussy, but she felt like it would never get there. She gently moved her hands to his cock and ran both of them over the soft skin of it. She grasped it with one hand, and slowly guided it into her waiting pussy.

Mark felt the head of his cock slip into Amy's warm pussy. She was so wet, he had no problem sliding it in as she guided it with her hand. He quickly glanced down at the sight of his hard cock slipping inside of Amy's warm, wet pussy. Her shaven mound gave him the perfect view of his cock disappearing into her tight hole as it slipped deeper with each second. He looked back up at Amy's face as her eyes filled with delight and desire. He slowly bent forward and kissed her. Then, as their kiss broke, he slammed his dick all the way into Amy's hot pussy. It gripped his dick tightly and he moaned with delight.

Amy felt as if she had rushed back into her body as Mark's dick slammed up into her. She grasped the back of his neck as his hips began to thrust, pushing his rock hard cock in and out of her. Her legs wrapped around his waist as he slowly brought his cock almost all the way out of her before pushing it hard back into her again. She felt her hips begin to buck in time with his thrusts, and her pussy filled with juices. She knew she wouldn't last long before he brought her to orgasm.

Mark began to thrust his hard cock into Amy's wet pussy faster and harder. As he stared into Amy's deep green eyes, he felt the cum well up in his balls. Fucking Amy had become almost an obsession with him since their first sexual encounter over a month ago. He had dreamt about filling her 22-year old pussy with his cock so many times that he had lost count. He fantasized about this moment, and now, actually being able to fulfill those fantasies drove him to the brink. He knew that it wouldn't be long until his cock exploded within her.

Amy had begun to buck her hips upward faster as Mark's thrusts increased. Mark could see in her half-closed eyes that she was close to orgasm. The thought that it was his cock causing his sister-in-law such pleasure turned him on even more and he started pounding her pussy as she moaned with delight.

"Oh, Mark," Amy gasped as her legs tightened around his waist. "Oh, Mark." She pulled him close to her until their faces were centimeters apart. She looked up sharply into his eyes, and as her body tensed in anticipation of her orgasm, she whispered, "I love you."

Hearing those words drove Mark over the edge. He dove onto Amy's mouth with his in a passionate kiss just as her back arched and she thrust her hips upward into his hard. Her orgasm built in her pussy. Mark could feel it fill with her juices as she held it tight to him. Then her orgasm exploded through the rest of her body. Her body shook underneath Mark and she squealed as the waves of pleasure flowed through every pore of her being. She held Mark tight as the feeling overwhelmed her, then she opened her eyes and bucked her hips wildly. Mark's mouth once again descended onto hers and their tongues danced with joy. Amy felt Mark's cock thrusting deeper into her in short bursts as her juices began to run down the inside of her thighs. Mark pushed his cock deep into her juicy pussy and his mouth opened as he exhaled sharply. Amy pulled his hips hard down onto her, holding him tight to her body as his cock began to twitch inside of her. Mark moaned as Amy traced his lips with her tongue and with one final, deep push, Mark's cock exploded inside of Amy's willing pussy.

"Oh god, Amy," Mark exhaled as his hips drove hard into hers and he felt his cock begin to unload wave after wave of cum inside of her young pussy. She held his ass tight to her as his hips shook with his orgasm. He grunted loudly as the last shot of cum escaped his throbbing cock, then he collapsed on top of her. She kissed him lightly as he got his breath back, and she pulled his head to her heaving chest.

They lay like that for a short time, letting the passion subside; his head on her chest, her hands running through his hair as his cock softened inside of her pussy. Their ragged breathing was the only sound in the room as they eventually regained control of their senses.

Mark lifted his head and nibbled on Amy's chin, eliciting a giggle from her, then he rolled off of her and lay next to her. She turned away from him, grabbing his arm and draping it around her waist. Mark cuddled up beside her, spooning her naked body with his. His fingers traced absentminded circles on her stomach as they lay in a silent embrace. Mark enjoyed the feel of her skin tight against his, and he lightly kissed her shoulder.

"You don't know how long I've wanted this to happen," Amy said softly, looking back at Mark over her shoulder. "I've fantasized about you since I was 17."

"Really?" Mark asked, his eyes widening. He liked hearing about how his attractive sister-in-law wanted him, but it did surprise him that she had for so long. He hadn't thought about her in any sexual way until the last month.

"Yeah," she giggled, "I actually fantasized about you the first time I used a dildo. I remember you had just started dating Loren, and I told her how cute I thought you were." She laughed lightly, sending a vibration through Mark's body snug against hers. "I started fantasizing about you while playing with myself, and when I turned 18 I got my first dildo, and pretended that it was you, fucking me."

Mark's felt the blood begin to flow to his cock again, hearing her talk about him like that. He imagined an 18-year old Amy impaling herself on a giant dildo while thinking about him.

"Mark," Amy said, turning over to face him. "You're Loren's husband." A worried look entered her eyes. "I love Loren. But I love you too. I have for a long time." She reached out a hand to gently stroke his cheek. "I know I shouldn't."

Mark reached his hand out to caress Amy's cheek as well. He stared deeply into her eyes.

"Amy, I haven't felt this way about anybody in 5 years." His words reflected the emotion that he had been feeling for the past month. A purely physical action had bled into something more since the moment they had shared a month ago. Tony's treatment of Amy had led Mark to realize that he did have feelings for her, sister-in-law or not. He had tried to quash them, but he couldn't. He loved his wife, but he also loved her little sister.

Amy smiled at his confession. She knew those words had been a way of saying "I love you" without actually saying it. She wondered if he would ever actually say it, but she didn't care. He had just admitted that he loved her, a moment she had been imagining for 5 years.

She looked over at the clock. It was 10:30.

"What about Loren?" she asked tepidly. Mark's eyes followed hers to the clock.

"She's asleep by now," Mark answered. "She went to bed early after being up early this morning."

"Oh yeah," Amy responded, remembering her parent's trip. She sighed deeply. "What are we gonna do?"

"I don't know," Mark answered truthfully. He had no ideas about what the future held. Amy snuggled tight into him.

"Mark," Amy said softly after a short time, looking up into his eyes.

"Yes, Amy?" Mark responded when he realized she wasn't going to continue without some prodding.

"I love you."

Mark swallowed hard. She had whispered it to him just before she came, but now she felt the need to tell him again. Her doe eyes made Mark's heart melt, and hearing those words again made his cock jump.

"I know," Mark replied. Amy's mouth opened to speak but before she could Mark dove upon her again, filling her open mouth with his tongue. Amy clasped the back of his head as she returned the kiss. Mark rolled on top of her, his hardening dick pressed against her inner thigh. A moan escaped Amy's mouth and entered his as his hand reached down to massage her breast.

"Again?" Amy asked with a twinkle in her eye as she broke their kiss.

Mark only responded by smiling at her and pressing his mouth to hers in a long, deep kiss. She moaned again as Mark's fingers circled her nipple. He then quickly moved his head to her chest and sucked that nipple into his warm mouth. He teased it with his tongue as Amy threw her head back in pleasure. He moved to the other nipple and repeated the gesture.

"Oh, Mark," Amy moaned his name as his assault on her nipples continued. When he finished, he brought his mouth to hers again and kissed her deeply.

Amy suddenly put her hands on his chest and pushed him up as she rolled him onto his back with Mark's willingness. She lay on top of him for a few minutes, kissing his mouth, neck, and ears. Then she slowly slid down his body until her face was positioned inches from his now hard again cock. She breathed her warm breath up one side of his cock and down the other, sending shivers through Mark's body. Amy smiled up at him when she saw that he enjoyed that. She did it a few more times, bathing his cock in her warm breath. Then she stuck her tongue out and slowly licked up the underside of his dick from the base to the head. Mark moaned in delight. As she reached the top, she slowly swirled her tongue around the head of his cock, causing it to twitch. Amy smiled at the reaction, and repeated the action, slowly circling the head of his cock with her tongue. She licked down his shaft and then slowly up again. Her teasing was almost too much for Mark to bear, but he made no protest as she continued licking up and down his thick shaft, occasionally stopping to swirl her tongue around the sensitive head.

"Good god, Amy," Mark moaned as the teasing continued. Amy giggled at his exclamation. Just as Mark was about to grab her by the hair and force her mouth onto his cock, she licked up the underside and sucked the head into her mouth. Mark moaned again as her warm mouth engulfed the head of his cock. She flicked the underside with her tongue before beginning a rhythmic bobbing, taking more of his cock into her mouth with each downward thrust. She pulled it almost entirely out of her mouth before slurping it down again. She sucked his entire cock into her mouth, holding her position with his cock in the back of her throat for a few seconds before slowly pulling her head back again. She gagged as she did, but it didn't seem to bother her or slow her down. She repeated the action a few more times; deep throating his cock and holding that position, her nose pressed firmly into Mark's stomach. Finally she released his cock from her throat and slid it out of her mouth. Mark wondered how his 22-year old sister-in-law got so great at cock sucking.

Amy straddled Mark's lap, seductively rubbing her pussy against his now wet cock. She slowly rubbed her pussy up the shaft of Mark's dick and then back down again. She continued grinding her pussy along the length of Mark's cock slowly as she sexily stared down at him. A wicked smile played on her lips and she licked them slowly, keeping her eyes squarely on Mark's face. It seemed everything she was doing now was slow and deliberate, designed to tease Mark, unlike earlier when their desire made them cut to the proverbial chase rather quickly.

Amy ran her hands up her body and fondled her tits. She massaged them with her hands as she continued rubbing her pussy along Mark's cock. She rolled the nipples in between her fingers and she bit her lower lip. Her eyes closed for a brief second as she enjoyed the sensations of her hands rubbing her tits and Mark's hard cock against her pussy. She opened them again and looked into Mark's eyes. Those green emerald eyes glistened in the candlelight as Amy stared at him as she continued her teasing. She smiled sweetly at him.

Then she reached a hand down to Mark's cock and guided it into her warm pussy. Mark and Amy both gasped at the same time as his cock slipped into her. She smiled at him again and slowly lowered her hips, swallowing Mark's cock with her wet pussy. The mixture of cum from their first fuck made Amy's pussy even slicker, and it easily slid over Mark's cock. She sat back and bit her lip again as she engulfed Mark's entire cock with her warm, willing pussy. She stayed still for a moment, enjoying the feeling of his entire dick inside of her. Then she slowly pulled her hips up again, allowing Mark's cock to glide out of her before sitting back down on it. She repeated the long, slow motion a few more times. Mark could barely stand all the teasing she was giving him. If she kept it up, he would soon be begging her to fuck him.

Amy leaned forward and put her hands on Mark's chest as she ground her pussy down onto his cock again. She licked her lips and gave him a seductive look that almost made him blow his load right there. She was so sexy. She began to thrust her hips in short bursts, slowly at first and then incrementally faster. Her eyes closed and her hair dangled down in front of her face as she began to buck her hips in faster bursts. Mark grabbed her waist and began to thrust his hips upward in time with hers. Her breath became more ragged as she rocked her pussy onto Mark's cock faster and faster.

She opened her eyes and Mark saw the pleasure etched on her face. She leaned back again, and began bouncing on Mark's throbbing cock. He guided her hips with his hands as she whimpered in time with her thrusts. Her eyes closed again, and Mark focused on her perky tits bouncing up and down as Amy rode him hard.

"Oh god, yes," she whimpered as she increased her speed. She was moaning regularly now and Mark assumed she was close to another orgasm.

Amy bent forward again and leaned her face down to Mark's. He wrapped his arms around her waist and held her tight as they kissed. Mark began to take control of the speed as he thrust his cock upwards into Amy's slippery pussy. She moaned in his ear.

"Oh please don't stop," she whimpered. "You're gonna make me cum!"

Mark felt her pussy contract around his cock as he buried it deep into her. He held it for a second as Amy moaned in approval. Then he began to pump her pussy hard.

"Oh, fuck!" Amy yelled as she felt her orgasm reach its crescendo. Mark held her tight as her body quivered in his arms. He continued the frenzied pounding of her pussy as he felt his own orgasm building. "Oh yes, pound my pussy," Amy whispered into Mark's ear. "Fuck me hard!"

Her suddenly salty language surprised Mark and it turned him on even more, if that was possible. He wanted in on the dirty talk.

"Yeah? You want me to fuck your little pussy?" Mark responded.

"Oh god yes," Amy whimpered, "fuck me harder!"

Mark knew he wouldn't last much longer at this rate. He drove his cock deep up into Amy's pussy. She sucked on his earlobe as he did, pushing him over the edge.

"Oh...my...god!" Mark exclaimed as his dick exploded inside of his wife's sister for the second time that night. He held his hips tight against Amy's as his cock spewed hot cum into her young pussy. He thrust his hips hard against hers a few more times as his orgasm subsided, leaving them both breathless. He held Amy tight in his arms and kissed her passionately. As their lips parted she sighed.

"Phew," she said smiling, "that was awesome. You're pretty good at this."

"Yeah, you're not too bad yourself," Mark responded, still holding Amy tight. She giggled at him.

"Why thank you," she said, jokingly triumphant.

"How many guys have you been with?" Perhaps not the right time for such a question, but curiosity got the better of Mark.

"You're just the second," Amy answered, kissing Mark again softly. "But dreaming about you for so long has prepared me." She giggled and Mark laughed with her. Their mouths entwined lovingly before they both collapsed into the bed again.

They caressed each other's bodies and made small talk sparingly. Mark affirmed that he had been fantasizing about her for the better part of the month, dreaming about being with her like he was right now. He told her how beautiful he thought she was and answered when she asked what he liked most about her. They had sex twice more that night, once in the shower as they washed each other's bodies. Mark couldn't help being turned on by her, and she enjoyed having that effect on her crush of 5 years.

Shortly after 2 am Mark finally had to leave Amy, and they both affirmed that neither knew how to quite handle the situation. But they both admitted that they would figure it out at some other time. And though neither of them said it aloud, both knew that this wasn't just a one time affair. They had feelings for each other that wouldn't be pushed aside. They knew they were in a tricky situation, and neither of them wanted to hurt Loren, Mark's wife and Amy's sister. But that common bond only seemed to make their relationship stronger. They had similar feelings, as opposed to a husband having an affair with some completely unrelated person who probably wouldn't care about his wife. Besides the love for each other, they both also loved Mark's wife.

Mark held Amy tight and kissed her deep one last time before he left her house. Leaving her felt like he was leaving a part of himself there. It didn't feel right. He wished he could stay with her forever.

His tired mind did mental gymnastics as he drove to his house, but was unable to come up with anything solid. He took a deep breath as he entered his house and walked up the stairs towards his bedroom. His wife was fast asleep, as he thought (and hoped) she would be. He quietly undressed and slid in next to her. He put his arm around her and kissed her shoulder. He lay with his body tight to hers as his mind raced. He loved her. And he loved her sister. The future, he knew, just got a lot more complicated.