That evening at dinner, Matthew announced that he had a board meeting to attend, and was sorry he wouldn't be able to spend time with his visitors. Ruth mentioned that she had called several of her old girlfriends that afternoon and would be visiting them. Ted said he didn't have anything planned, but was looking forward to a nice jog around the neighborhood, a long shower and then hitting the hay early.
All the heads turned to Mark. He grinned and said he didn't have plans either. Matthew invited him to join the board meeting at the church, but he declined, saying this was supposed to be a vacation for him and he had enough of that back home. No, he said, he would just be content to watch a little TV, read a book and turn in early. He would use this vacation to rest.
Isabelle said she would be busy with the decorations and doing some baking. She felt a little sorry for Mark, because it seemed to her everyone else had something to do. He just sat around feeling sorry for himself for having lost his wife to a younger man.
After dinner, they all went their separate ways. Mark helped with the dishes and even volunteered to help with the baking. But Isabelle said it was pretty much a one-person job and told him just to go relax.
As soon as Ted came down in his running shorts and shoes and headed out the back door, Isabelle put her apron aside and scurried up to Mark's room.
She knocked lightly.
"Come in," Mark called from his bed.
Isabelle pushed the door open slowly, looked back over her shoulder, tiptoed insides and went directly to the bed. Without waiting for another word, she leaned over and gently kissed Mark on the lips.
"You know," she said. "I really had a fun time with you the other day… I hope you don't think I was being too forward. Or too… you know. I mean, I certainly wouldn't want Matthew to find out about us, but, well… it's just that I need someone to pay a little more attention to me than he does."
Mark smiled up at her, put his book aside, and took her hand, puffing her face back down to his.
"Not at all. I understand perfectly." He kissed her as he continued, to pull her closer.
She stretched out on top of him, kissing wildly and sensually, her body rubbing madly against his.
Mark was lying on the bed in a maroon robe and Isabelle instantly began to work her hands inside the folds of the soft velvety material, feeling her brother-in-law's strong hairy chest muscles. She moaned and hummed as she felt his nipples – and his cock growing harder under her writhing belly.
Mark wrapped his arms around her and flipped her over. She continued to pull and loosen his robe, tugging at the belt, and soon she had it open all the way, his long stiff throbbing cock popping out into full view.
Mark had removed her blouse and bra, and had her slacks off in short order. They exchanged very few words. Their grunts and moans of pleasure said it all. Then, when they were both stripped bare, Isabelle pulled Mark on top of her. She immediately grabbed his long stiff cock as she spread her legs.
"Oh, yes, Mark. Fuck me! Fuck me good! I can't get enough of your beautiful cock fucking in and out of my pussy. Fuck me, fuck me, fuck me, Mark, please!"
She nuzzled his huge throbbing slippery cock head up and down between her cunt lips a few times, feeling his early precum moisten her outer lips. She flicked the flared bulbous head over, her clit, sending warm chills up her spine to the base of her brain. Then she lowered it to her slick eager cunt-hole, nosed it around a few times, probing his blunt prickhead just inside, working it around, working up a good amount of her generous fuck juice.
"Ooh, yeah, Mark. Clod, that feels so good! Shove your gorgeous cock right inside my waiting cunt. I need it. I need your cock inside me so ba-a-a-ad. Oh, yes yes yes! That's it. That's wonderful. Absolutely wonderful. Ummmmmmm!"
Mark was eager and quick to respond. He had been letting her take the lead. He held his hips up so just the knob of his huge cock was touching her cunt where she wanted it to be touched. He held himself up over her on stiff outstretched arms, looking down into her radiant lust-filled face.
She was so beautiful, he thought. She was young and hot and horny. It was a shame his brother ignored her so.
If she was his, he told himself, he'd fuck her brains out every night. She was just the thing for a young man like himself. He would only be visiting another week, but he'd try to fuck her every chance he got. That was why he hadn't made any plans for the evening. He had suspected, even hoped, he would get another chance to soak his aching cock in her hot dripping pussy after everyone eke left. He smiled when she squeezed his cock as tight as she could and plunged it into her hungry fuck hole.
"Mmmmmm," he hummed. "Oh, yes, Belle. You're so beautiful. So hot. I can't imagine Matthew doesn't take better care of you. But I'll fuck you. As long as I'm here, and whenever you want it, I'll fuck you good. Your cunt feels so-o-o-o good wrapped around my cock. I could do this forever."
When Isabelle planted his cock in her pussy, she reached around with both hands and grabbed his ass to pull him in deeper. He tightened his hard ass muscles as he began a slow steady piston motion with his cock, sinking it in a little deeper, pulling out a little further. With each long slow steady stroke, he plunged into her tight pussy a little further, feeling every fold of warm silky flesh, every contour of her hat tight cunt as it swallowed up his rigid, aching cock.
Isabelle moaned and tossed her head with each stab of his hard cock into her welcoming pussy. She yanked harder on his firm ass cheeks and looked up into Mark's smiling face. She could tell he was getting off on this fucking almost as much as she was. He had been neglected for so long, too, it was only natural, only fair, that they share a fuck with each other. It seemed to make everything right.
"Oooooooh, yes, Mark. Yes yes yes." She ginned and tried to laugh. "You can't possibly imagine how wonderful that feels. Please fuck me, Mark, whenever you can. I need you to fuck my cunt so, so bad. Oh, oh yes. That's it! Faster now, Mark! A little harder!"
Mark began to pick up his pace, and was soon stabbing his rigid cock into her hungry cunt as fast as he could. She moaned and writhed with each of his powerful jabs into her hot tight pussy, and began slapping her hips up to meet his forceful thrusts into her.
Mark bent his elbows and lowered his face to her tits and began sucking them fervently. They were hot and getting hotter, the nipples hard and erect and jutting out high above the twin globes of creamy white flesh. He pulled a nipple in his mouth and squeezed it between his teeth, rolling it around, flicking over it wildly with his hot tongue. She yipped with joy when he switched to her other aching tit to repeat the action.
Soon Isabelle was bucking and grunting with excruciating pleasure.
"Harder now. Fuck me harder and I'll be coming all over the walls. Yeow! That's it! You got it now. Oh, yes, wonderful. Fuck me as hard as you can, and I'm there! Oh, yes, wonderful. This is it. Unh, unh, unh, I'm coming! I'm comiiinnngg!"
Their bodies slapped together so hard and so fast the bed squeaked across the floor, the headboard slapping up against the wall as their bodies slapped into each other's. Isabelle was delirious with joy. That was the most wonderful sound she had ever heard.
She wrapped her legs around Mark's thighs as tight as she could. She wrapped her arms around his back, pulling herself completely off the bed as she slapped her soaked crotch up against his with wet squishy sounds.
Mark thrust his hard cock into her faster and harder. His ass whipped up and down in a blur of activity as he ramrodded his cock into her erupting pussy at record speed. Then he felt his balls scrunch up in his crotch and issue that tingling sensation that signaled his upcoming orgasm.
"Oh, Belle, oh Belle, oh Belle! This is it! I'm with you all the way. I can feel my cock exploding now. I'm coming!"
He lowered himself to her chest and squeezed his arms against her sides as tightly as he could as he felt his prick fire round and round of his thick white cream into her waiting cunt. He fed her so much spunk they wondered where it all came from. Blast after mighty blast erupted from his pulsating cockhead, flooding the depths of her fuck hole with what seemed like a pint of thick rich cream.
Again and again, they bucked and squirmed and slapped their groins into the other as their orgasms raged on, filling the room with the sounds Isabelle had so wanted to hear since she married Matthew six months earlier. Their orgasms mounted and mounted, taking them both higher and higher toward ultimate sexual fulfillment.
When she felt Mark slow his thrusts against her body, Isabelle tightened her grip around his back and thighs and hugged as tightly as she could, pulling herself as close and holding as firmly as possible. She felt her muscles twitch from the extreme exertion she was applying with her tight grip.
Her whole body trembled and convulsed as he stabbed her cunt a few final times with his waning cock. She clenched it mightily with her cunt muscles to milk the last of his cum up from his balls. She squeezed again, feeling his softening cock shrink in her cunt, and she relaxed. She loosened her grip around him and plopped to the bed – hot, wet, and happy. She pulled his face down to hers and planted wet sloppy kisses all over it between massive gasps for air. Her ass gyrated and heaved in a slow sexy undulating pattern as she tightened her cunt muscles around his flagging cock.
He relaxed his muscles and let his massively heaving chest press against her smaller, softer, but equally heaving, upper body. His hairy chest pressed and rubbed against her still-erect nipples. She arched her back to force more of her large tits into his strong chest.
Together they lay, huffing for dear life. Neither had been so worked-up in a long time. They reveled not only in the sheer pleasure of the sensation, but in the fact that they really shouldn't be doing this, and that they could be caught at any moment.
Once they regained their breaths, Mark lifted his head, looked into his sister-in-law's lovely fair face and caressed her smooth soft silky blonde hair.
"You know that was the best fuck I ever had. I mean that. You were magnificent. Absolutely wonderful. I don't know how I'm going to live without you. Your cunt feels so good tugging at my cock. Your body feels so wonderful slapping up against mine. Your firm warm tits pressing against my chest… but we really shouldn't be doing this. We can't risk getting caught. It would ruin three people's lives."
She smiled weakly and kissed him softly. "I know, I know. You're absolutely right. But, God, Mark. I'm so… so frustrated. I get so lonely. So horny. And your cock feels so good inside me. I just can't fuck you enough. I need you. My pussy needs to feel your cock, deep inside where it itches."
She raised her head and kissed him again. She flexed her cunt muscles to let him know how fulfilled and how satisfied and how grateful she was. And she shuddered. He was hard again.
"Oh, God, Mark. I can't believe it! Fuck me again. Just one more time. That's all I ask. Just once more, please."
She pulled her ass toward the bed, off his stiffening cock, and slammed her hips back up she pressed her lips against his to prevent him from objecting, and quickly worked up a good speed, sliding her cunt up and down his slick cock.
Before long, they were pumping into each other at a lightning speed again, and before very much longer they were calling out their respective orgasms.
"Oh oh oh oh, God, yesssssss!" Isabelle shrieked. "Yes yes yes, Mark. Do it! Fuck me as hard as you can. Deeper, Mark! Fuck your cock deeper into my burning cunt faster! Put out the fires way down deep inside my pussy."
She threw her legs over his shoulders this time to get his cock in her as far as it would go. Turned on all the more by her wanton act, he gritted his teeth and hammered away at her pussy with a royal vengeance. Before long he filled her dripping cunt with another glorious load of his rich creamy spunk.
They collapsed together on the bed and tried to regain control of their breathing. But the warmth of their bodies against each other's, their cool breath on each other's neck and shoulders, their sopping wet groins grinding into each other's had them hot and horny again in no time. As he squeezed her gorgeous firm tits, she ran her hands down his strong back and over his tight ass cheeks, and began yanking his semihard cock back into her ravenous cunt.
Then both heads snapped up frantically when they heard applause come from the doorway.