Biff and Sandy began seeing more and more of each other. They were practically inseparable. So were their mothers.
The kids didn't peek at their mothers making it any more. They were too busy doing it themselves. But they didn't forget what they had seen the time they looked into Marge's room. Sometimes they would talk about it, remembering each kinky thing the women had done.
One day, while Biff was home alone, Marge showed up.
"Hi, is your mother here?" she asked.
Biff told her that he was alone – his mother had gone shopping. He didn't expect her back until dinner time. It was early afternoon yet.
Marge made small talk until Biff had to invite her in. He was shy around Marge. After peeking at her and his mother, it was difficult for him to relax with her. Besides, he was fucking her daughter and he didn't want to have to answer any questions about that.
"Can I have something to drink?" Marge asked him. "It's so hot out!"
Biff offered her a glass of beer. As Marge sat sipping the beer, she began asking how he and Sandy were getting along.
"We should get together for dinner again. All four of us, like last time," Marge said.
Biff had been uncomfortable the last time they all had dinner together. He would rather not have to go through it again. But he told Marge that it would be nice.
Biff thought Marge was looking at him strangely. He hoped she wasn't going to do anything to embarrass him. But he hoped in vain.
"I wonder if you remember a funny thing that happened a long time ago," she said. "You were just a little squirt at the time."
She wasn't going to talk about the time Biff had found her jerking off, Biff hoped.
"You wandered into our house and found me in a most compromising situation," Marge said. "Don't you remember?"
Biff couldn't believe his ears. Why did Marge want to remind him of that? He would think she would rather it be forgotten.
"I think you do remember," Marge said with a giggle. "Gee, I was horny in those days. I used to play with myself all the time!"
Biff was getting very nervous. But at the same time, he was getting turned on. After all, it was exciting to have this older woman talk to him like this.
"But I'm not horny any longer," Marge said. "And do you know why?"
"No!" Biff said.
Was she going to tell him that she was a lesbian, he wondered? Would she admit that she had made love to his own mother?
"Because I go after what I want," Marge said. "And I want you!"
Biff stared in disbelief at the woman. What was she telling him? Could she be inviting him to fuck her?
"But… but I thought you…" Biff held his tongue.
"You thought what?" Marge asked.
Biff had almost said he thought she was a lesbian. But he wasn't supposed to know that. He had been so shocked at Marge's advances that he almost made a serious slip.
Marge had gotten up and was coming toward Biff. He sank back into the couch. Still it wasn't a completely negative experience. Watching Marge's huge tits come nearer would excite any guy.
"I know you and Sandy are sweethearts," Marge said as she sat down on the couch beside Biff. "That's all right. Sandy and I have shared boys before."
Biff couldn't believe it. But, on second thought, anything could happen with chicks like Marge and Sandy.
Marge touched Biff's cheek. He looked down at her tits, which were overflowing the top of her low cut dress. This was his chance to really examine her prize-winning tits, Biff realized.
"We won't tell anyone about this," Marge was saying in a soft voice. "It can be our secret. Secrets are fun – don't you think?"
Biff couldn't have refused now if he wanted to. Besides, he didn't want to. He remembered how Marge had looked when he and Sandy peeked into her room. Her body was amazing. And she was a woman of considerable talent.
But Biff didn't have to say yes. Marge was already pressing her face to his. She kissed him.
Marge had kissed Biff before. But those were only friendly kisses. This kiss was different. Her tongue shot into his mouth right away. It reached almost down his throat!
Marge obviously meant business. So Biff grabbed one of her tits.
Holding her tit, Biff was transported to heaven. Her tit felt even larger than it looked.
"M-m-m-m-m," Marge moaned. "You do like nit, don't you?"
"Yes," Biff gasped. "Very much!"
He dropped his head to Marge's chest. He began kissing the exposed tops of Marge's tits.
"Let me get this dress off," Marge said. "Then you can really kiss my tits like you want to!"
Marge stood. She pulled off her dress. Her fabulous tits hung from her chest in front of Biff's bulging eyes.
"Do you like them?" Marge asked, as she massaged her tits.
Seen close like this, Marge's tits were bigger and more beautiful than they had looked when Biff and Sandy had peeked into her bedroom.
"They're beautiful," Biff gasped.
"Then suck them!" Marge commanded.
She straddled Biff's lap; her tits were thrust into his face.
Biff put one hand on each tit. They were heavy and fairly firm. Most of all, they were soft and creamy smooth.
Biff looked closely at the marvelous tits. Her nipples were huge, and they weren't perfectly round. They were oval. Probably because of the way her tits sagged, Biff thought.
After examining Marge's tits with his eyes, Biff tasted them. He took one of her big nipples into his mouth and sucked. His nose and chin were buried in tit-flesh.
"Yeah-h-h-h," Marge sighed. "Yeah-h-h-h, suck me! Oh-h-h-h."
Biff sucked each tit. And as he did, his hands explored Marge's naked thighs and slipped into the back of her panties to feel her ass. His prick was throbbing in his jeans right under where Marge's cunt pressed against him.
The difference between Marge's body and her daughter's was amazing. Sandy's tits were nothing like these, Biff thought as he played with them.
After Biff had sucked Marge's tits for quite a while, she got off his lap. Standing in front of him, Marge kicked off her shoes, then lowered her underpants. She brushed her fingers over her pubic hair a few times as Biff stared at her.
"Do you think my body is as beautiful as Sandy's?" Marge asked.
"Oh, yes, yes!" he said.
Biff realized that he'd just admitted being familiar with Sandy's body. But that wouldn't matter to a lusty mother like Marge.
"Take your clothes off," Marge said.
Biff obeyed. Soon he was as naked as Marge. His cock stood from his lap, twitching rhythmically.
"What a beautiful, big prick!" Marge said as she sank to her knees.
She leaned over Biff's lap, her tits completely covering his thighs. Taking his standing prick into her hand, Marge caressed and stroked it. Now his cock really began to jerk. Its head was gorged with blood, making it purple.
Biff shivered as he watched Marge playing with his prick. He loved the way her tits felt as they lay on his thighs, too.
"Such a pretty cock!" Marge said as she lowered her face to it.
Biff felt her soft tongue pass over the head of his prick. Then it was plunged into the wet and hot grip of her mouth.
"Huh-h-h!" he gasped with the joy that suddenly filled him.
Marge's head rose and fell over his lap as she slid his prick in and out of her mouth. Biff ran his hands over the smooth skin of Marge's shoulders and back as she sucked him. Then he buried his fingers into her tits which were still draped over his thighs.
Biff was wiggling with excitement. But Marge wasn't sucking him in a way that would make him come. She knew how to raise him to the heights of desperate lust and keep him there.
Marge took her mouth from Biff's cock. Then she lifted his thighs, pushing him back into the couch. His balls were raised, and Marge began nibbling at them. Finally she opened her mouth and took Biff's big balls into it.
Biff was under Marge's spell. With his balls lying in her mouth, he felt as though he were under her power.
When Marge let his balls fall from her mouth, she sucked his cock a bit longer. Then she climbed up on the couch beside Biff.
They caressed and kissed again. Biff filled his hand with Marge's massive tit. After having his cock and balls bathed in her mouth, kissing her was more exciting than ever.
Marge disentangled herself from Biff's embrace. Then she lay back on the couch with her head resting on the couch's arm. She lifted one leg to the top of the couch's back. Her other leg was draped onto the floor.
Biff found himself staring into the spread lips of Marge's pussy. He could see the inner lips of her cunt between her plump, hairy pussy mound.
Below her cunt, her full asscheeks lay. Marge's eyes were half closed. She reached to her chest and rested her hands on her tits and began to massage them. Although she hadn't said a word, it was obvious that she was inviting Biff to eat her cunt. He was ready, even eager, to oblige.
Crawling between her wide-spread legs, Biff made himself comfortable.
"Oh-h-h-h, Biff!" Marge cooed. "Good boy!" Marge was looking down at the boy between her legs, smiling slightly. Biff was kissing the inside of Marge's thigh as he neared her cunt. He kissed and licked each thigh. Finally, he felt her pubic hair touching his face.
Biff stuck out his tongue. Combing it through the curly hairs of Marge's cunt, he found her pussy hole.
"O-o-o-o-o," Marge squeaked when she felt Biff's tongue enter her cunt.
As the briny flavor of her pussy filled his mouth, fluff closed his eyes and began lapping eagerly.
"Ah-h-h-h-h-h," Marge moaned. "Oh, good boy!"
Biff had become an ardent cuntlapper since eating Sandy's cunt, so he thoroughly threw himself into the task of giving Marge's cunt a good licking.
His tongue covered Marge's pussy from corner to corner. Then it probed into her. Then it fluttered over her clit. Then he would start the cycle all over again.
In no time, Marge was writhing desperately. She was still clutching her tits, but now she was lifting one to her face. Biff looked up just in time to see her suck her own nipple into her mouth. That was a new trick, he thought. And an exciting one to witness.
"Oh-h-h-h-h-h," Marge moaned, her tit in her mouth.
Suddenly Marge's body heaved. Biff's muzzle slipped from her cunt. Marge's tit escaped from her mouth and wobbled crazily on her chest.
"Ah-h-h-h-h," she screamed. "Oh my God! I'm coming!"
Biff had never seen such an explosive orgasm. He was stunned.
"Suck me!" Marge hollered. "Don't stop!"
Biff dove into Marge's crotch once more. He had to hold onto her quivering thighs because she was still heaving and bucking.
"E-E-E-E-E-E!" Marge wailed in mindless ecstasy.
Every time Biff touched Marge's clit with the tip of his tongue, her ass lifted from the couch and she screamed. But Biff kept after her swollen clit with his wagging tongue.
"OK, OK," Marge gasped. "That's enough. Stop!"
Biff lifted his wet face from Marge's soggy cunt. Marge looked as though she'd been run over by a truck. Her hair stuck to her face with sweat. Her enormous tits rose and fell with her deep breaths.
"Biff, where did you learn to eat a cunt like that?" Marge asked. "Never mind. Don't answer that. I can imagine!"
Biff smiled as he mounted Marge. After sucking her pussy, he was dying to sink his prick into it.
He rested his chest on her mammoth tits and stuck his cock into her cunt.
Marge's cunt was just as tight and hot as her daughter's. As Biff's cock slipped into her steaming cunt, he pressed his mouth over Marge's. She thrust her tongue into his mouth, tasting the juice of her cunt there.
Biff knew how to pace himself while fucking. He no longer began jerking madly until he came. Sandy had taught him how to get the most pleasure from fucking, and now Marge was getting the benefits.
"Biff, listen," Marge said suddenly. "I want you to do something special for me. Will you do it?"
What could she want from him while he was fucking her, he wondered? But he was eager to do anything that this lusty woman wanted.
"What?" he asked as he slowed his prick-thrusts into her pussy.
"Take your prick out of me," Marge said softly.
Biff obeyed. He hated to pull his prick from the tender cunt it was throbbing in. But he did.
Kneeling between Marge's legs, he waited to see what would happen next.
Marge lifted her knees to her tits. Then she reached down and grabbed the cheeks of her ass, spreading them. Biff saw the woman's puckered asshole below her cunt.
Biff's ears began to burn, as he blushed. His heart pounded. He suddenly knew what Marge wanted. At least he thought he knew, but it was almost too weird to believe.
"Fuck me in the ass!" Marge hissed. "Please, Biff! Try it – you'll see how nice it feels!"
Biff had guessed right. He looked at Marge's asshole. It did seem like an exciting place to stick his cock. He was willing to try it.
So Biff brought his prick to her tight asshole. Cunt juice was seeping from her pussy and covered her asshole. More cunt juice was coating Biff's prick. With that lubrication, he was able to push his cock into the small ring of Marge's asshole.
"O-o-o-o-o-o," Marge moaned as Biff's prick slowly disappeared up her ass.
Biff watched his cock slide into Marge's asshole. It was quite a sight. And it felt terrific, too!
Biff let his cock lie still in Marge's ass while he enjoyed its tight grip. Then he began sliding it in and out.
"Oh-h-h-h-h!" Marge wailed.
Biff was glad Marge had suggested this perversion. Fucking Marge's ass was the most exciting thing he had done so far. Not only did it feel wonderfully tight and tingly, but watching his prick pistoning in her ass while her empty cunt stared up at him drove Biff into a frenzy.
"Ah, ah, ah, ah," he grunted as he pumped his cock in and out of Marge's ass.
With her asshole filled with hard cock, Marge writhed in ecstasy. But having her ass fucked wasn't enough for her. She grabbed one tit and squeezed it. With her other hand, she reached for her cunt.
While he fucked her up the ass, Biff saw Marge lay her hand over her pubic patch. Her middle finger fell onto her clit and began moving in a circular motion. Faster and faster she rubbed her clit as Biff's prick pumped faster and faster in her ass.
"E-e-e-e-e-e," Marge began moaning in orgasmic joy.
Biff felt her asshole contracting on his sliding prick as she came.
"I'm coming too!" Biff gasped as his prick began filling Marge's ass with jism.
Coming in Marge's ass was different from anything Biff had experienced before – different and better!
When he had stopped coming, and when Marge had stopped her writhing, Biff collapsed onto her.
"Oh-h-h-h-h-h-h," Biff sighed blissfully.
"What a good boy," Marge cooed. "That was the best fucking I've done in years."
"Even better than with my mother?" Biff asked.
That took Marge by surprise. But she kept calm, much to Biff's relief. He just had to tell Marge that he was wise to her lesbian affair with his mother. And he was glad she didn't get excited about it.
"So, you know about that," she said. "Your mother didn't tell you, I'm sure."
Biff told Marge about how he had come home and heard his mother moaning in ecstasy before he saw Marge leave the house. He didn't tell her about he and Sandy peeking into her bedroom, though.
"Well, when you've been fucking for as many years as I have, you need a change – you know?" Marge said.
Biff said he understood. Talking about this with Marge was getting Biff in the mood for another fuck.