She managed to fall over on her side and Larry's cock slipped out. She quickly removed her panties. Larry took up a new position by the pretty wife's side. He raised her leg closest to him, stuck his big cock into her from the side and resumed pumping while he fondled her tits.

"Is this how you and Tommy do it sis?" He asked lewdly. "Is this how you like to be fucked?" Mary wasn't used to talking during sex, especially dirty talk! She said nothing.

Larry stopped playing with her tits and reached down to her pussy. He quickly located Mary's clit and started to apply expert strokes designed to please her. The young wife immediately reacted with soft whimpers and moans. She could feel her own self-control begin to fade, and started to buck her hips in response to the stimulation. She had never been touched like this before and it sent wild waves of pleasure coursing through her body. She suddenly found herself totally enjoying her brother-in-law's fucking.

Before long Mary was lost in her first ever climax. Her body tensed then shook and shivered as the wild waves of erotic pleasure reached their ultimate zenith. She breathed hard, harder than ever before in her life, and suddenly lost all self-control.

"Yes! Oh Larry Yes! Oh fuck me Larry! Fuck me and make me pregnant!" The young wife blurted out spontaneously during the heat of her orgasm.

Obviously pleased with this turn of events, Larry stepped it up a bit pumping harder and stroking faster. "You like this don't you Mary. Same as you sister, Lauren. You like getting your clit rubbed while being fucked from the side. You like it don't you?"

"Yes! Yes don't stop, faster, fuck me faster!" She answered breathlessly.

This little exchange drew Tom over to the doorway. Tom peered into his own master bedroom to see his beautiful wife being plundered by his crude brother-in-law. She was lying there facing the doorway with Larry on the far side. Larry had his arm under her knee as he held her leg high enough to get his cock in from under her hip. Larry was pounding this huge cock in and out of Tom's wife while he vigorously rubbed the front of her dark curly mound. Mary's tits bounced and shook violently as he hammered her.

It looked to Tom like his wife was really getting into this. There she was, naked save for her wedding rings, getting fucked with this huge monster cock. Sweat poured off the both of them as they wildly bucked their hips. It looked like his wife was pounding back at Larry's cock with increasing enthusiasm. It was a highly erotic sight to behold.

Tom had never seen live sex before, not even in movies. The sight mesmerized him. A feeling of lust overcame him as he watched his pretty wife getting fucked and fucking back. Tom reached in his pocket and started to play with himself to maximize the pleasure of watching. His mind pleaded with her to make Larry cum so he could see it happen. He was amazed at himself for having these feelings, and couldn't tear himself away from the vision before him.

Soon Larry's body tensed and he slowed down the pace. "Oh Baby I'm cumming, I'm cumming for you Mary, oh yeah!"

Mary smiled a half smile half smirk as Larry filled her with his seed. The pumping slowed way down and eventually stopped. His long cock slipped out as Larry rolled over on his back still breathing heavily. Both Mary and her brother-in-law lay there for a moment in silence. Tom slipped away silently, back to the living room.

Larry was up and dressed in an instant and made his way back to the kitchen for a fresh beer. He popped his head into the living room to speak to Tom.

"I'll tell ya Tommy boy, your wife sure likes to fuck! You are one lucky bastard! I guess I'll see ya tomorrow night, gotta go now. Say bye to Mary for me!"

Tom flew to the bedroom to be by his wife's side. She lay there sweaty, naked, and silent. White liquid was dripping from her pussy making a little puddle on the bed.

Tom broke the silence with his soothing voice "Are you okay honey?"

Mary opened her eyes and turned to look at her husband. "You don't hate me do you?" she asked. "I'm only doing this for my sister Lauren."

"I hope she appreciates it." Tom consoled her.

"Do you still love me?" Mary asked in a soft quiet tone.

"I still love you. I will always love you Mary." Tom answered.

Mary took Tom's head in her hands and held in to her chest. They both fell asleep in each other's arms.

The following night was almost a repeat of the first. Larry arrived late, looking unkempt and reeking of beer. Mary was dressed in a tiny red nightgown and decided to forgo wearing panties. Larry made a big deal out of his sister-in-law's sexy appearance.

"Wow sis! You look real hot!" Larry smiled his vulgar smile. He walked up to her and took her in his arms. He planted a big wet kiss right on her lips and forced his tongue into her mouth. His hand dropped to Mary's butt and he fondled her backside liberally.

"Man, you are one hot fuckin bitch." Larry complimented. He looked over and saw Tom in the next room. "Looks like your wife is ready for her fuckin Tommy!" he chided.

Larry pulled Mary to the Master bedroom and pushed her down on the bed. He threw off his clothes and smiled down at the sexy young beauty. His huge cock stood straight out and bobbed ominously. "Roll over and spread em." He commanded her. Mary obediently rolled onto her stomach and spread her legs shamelessly. She arched her back and raised her butt in the air to better receive her brother-in-law's penetration.

Tom moved over to the doorway and peeked inside. He was immediately aroused at the erotic sight. There was his pretty young wife lying face down on his bed, her red nightgown pushed up to her waist. Her legs were spread wide and her sister's husband was behind her rubbing his huge cock against her slit. Suddenly he penetrated her in one searing thrust and started wildly pumping away. His wrinkled ball sack slammed against her with every stroke. Tom reached into his own pants and began rubbing himself.

Larry continued pumping wildly for several minutes. His big beer gut was shaking like Jell-O as he pounded his hips against Mary's ass. Finally, all the exercise caught up with him and he collapsed breathing heavily.

"Get up here and sit on me" Larry insisted in his domineering tone.

Mary silently complied with his request. She straddled her brother-in-law's hips and gently guided his big cock into her pussy. She began rocking slowly causing his cock to move in and out. "That's real good sis. You feel real good!" He breathed softly.

Larry pulled the straps of the nightgown from the pretty wife's shoulders causing the garment to fall to her waist. Her breasts swung free and unprotected openly on display to his leering gaze. He smiled rudely, watching Mary's sexy tits jiggle playfully as he bounced her on his hips. He reached up and took them both in his coarse hands. Larry played with her tits to his hearts content pulling and pinching her pink puffy nipples

"You've got nice tits sis, really nice tits! I could do this all day." He commented.

The thought of doing this all day was repulsive to Mary. She couldn't wait for this ordeal to be over, to become pregnant and forget about this humiliating experience. She looked over at the open doorway and saw her husband lurking there, almost in a trance. Tom's cock was in his hands and he was stroking it rapidly while he watched his wife and her sister's husband soil their marital bed.

The site of Tom in the doorway had a strange and erotic effect on Mary. The thought of her loving husband watching her engage in sex with her crude brother-in-law was turning her on. She reached her hand down to the spot where Larry was touching her yesterday. Mary started rubbing her own clit while making serious eye contact with her husband. Their gazes met. Both Tom and Mary were locked into an intense masturbation experience while Larry fucked happily away, fully engrossed with his wife's sister's tits.

The rubbing stroking and fondling all had their desired effect. All three of them reached a climax at precisely the same time. Larry pushed Mary off of him and got up of the bed. He immediately began dressing while he spoke to Mary. "Yeah, you are one real good fuck there sis! I'm really enjoying this a lot! Make sure your ready for tomorrow night!"

As soon as Larry left Tom was by Mary's side. They stared into each other's knowing eyes but saying nothing. Tom reached over and lifted Mary's leg, she guided his cock into her warm wet pussy. Tom began pumping his wife from the side with vibrant enthusiasm. Mary reached down and began rubbing her own clit. Before long the pair reached a simultaneous orgasm. They dozed off contented in each other arms.

For the next three nights Mary continued to have intercourse with her ill-mannered brother-in-law. Tom would watch from outside the room and couple with his wife afterwards. Larry was oblivious to the erotic effect he was having on the couple. He would just do his thing and get out of there.

The scheme was successful and Mary became pregnant. She delivered a healthy baby boy and gave it up to her sister Lauren. It seems that everyone learned something from Mary's selfless gift to her sister.