Alone in the house, back from school, Greg lounged on the easy chair in the living room, flipping through channels on the TV. He'd thrown on jeans and a t-shirt when he came home, and fixed himself a sandwich which now sat in a plate on the coffee table, half-eaten.
When the top of the hour hit, he eagerly switched over to the music video channel for their all hip-hop hour. Greg didn't like the music at all, but he knew it was the number-one place to see big butts shaking and shimmying. In almost every video voluptuous black girls in hotpants and thongs danced in time to the music. Greg's cock got hard and strained against his jeans, and he idly rubbed the outline with his hand.
Inevitably, his thoughts drifted to his mother - the way she'd been dressing around the house lately, her teasing, and of course their encounter last night. Greg was confused, and even tried to bring up the subject with some of his friends at school, to get some advice. He asked them a few questions about 'women in general', and what he should do if one was coming onto him. 'Hit that booty' and 'rock that ass' were the sort of sophomoric answers that he received. When he asked what he should do if it was inappropriate to have sex with that particular woman, they just told him, 'damn, that just makes it hotter!' and 'fuck her, cum on her face, smack her, and say wham-bam-thank you ma'am!'
Of course, none of them could guess that the woman in question was his mom - in fact, most of them thought he was just making it up, as Greg was usually quite shy around girls and hadn't had a lot of experience in one-on-one dating.
As though summoned by his thoughts, Greg heard his mother's car arrive in the driveway. He switched the TV to the sports highlights channel, and tried to hide his erection.
He heard his mom walk in, and moments later she peeked into the room. Mary looked like her 'old' self; conservatively dressed in washed-out colours, indeed her whole personality seemed tired and washed-out. The stereotypical efficient but frigid woman at the office. All business.
"Hi there, Greg."
"Hi mom." She stepped forward and Greg saw another shopping bag hanging at her side.
"Hey Greg, can I ask you something?" She seemed a little concerned. Greg nodded his head, faking disinterest by keeping one eye on the TV. "Last night...you didn't mind did you?"
Greg hesitated.
"You liked it?" she asked again.
"Uh, yeah, sure..." Greg stammered. "I mean, yeah, of course."
"You don't want me to stop?"
"N-No." Greg shivered as he said it.
Mary sighed in relief and a smile lit up her face. "Great! Don't go anywhere, I'll be back as soon as I can!" She turned and hurried up the stairs and to her room.
For a moment Greg thought this was a chance to get out - slip out of the house and not come back until his mom had gone to sleep. But he decided to stay, though it was a choice made partly by his heart and his feelings for his mother, and partly by his half-hard cock, which he reached down to rub some more.
*****
The first noise he heard was heels on the kitchen floor. As Greg's mother walked out of the kitchen into the living room, Greg's eyes widened.
Platform high-heels with delicate black leather bindings were on her bare feet. The pants she wore would look ridiculous on any woman over twenty - on Mary, at about twice that age, they looked so wrong they were right. Thin and skin-tight, inch-wide horizontal stripes alternated in black and hot-pink; Greg got dizzy just scanning her body. Above the tight waistband was a cute little bulge of flesh, as though the pants could barely keep in that much ass and were on the verge of exploding. Her midriff was bare and her large breasts bounced around in a flimsy fishnet top. Again, she was wearing the sexy tortoiseshell glasses.
"Aw, shit," Mary sighed, and brought a bottle of beer to her lips. She took a gulp and then threw her hair back. "It's nice to get another day of work out of the way, you know?" She then looked down at the bottle of beer and handed it to Greg, breasts jiggling as she leaned over, "Ah, here, I got this for you."
"Um, thanks," Greg said, and took the bottle. With all the condensation on the cool glass it almost slipped through his fingers. He took a sip and was thankful for the coolness in his mouth and in his hand, though it did little to calm the fires that were burning inside.
Greg's mother strutted in front of him, stepping slowly from one foot then the other, feeling her legs rub together with every step, admiring herself as though Greg wasn't even there.
"It's such a relief," Mary said, absent-mindedly, "Getting home, throwing off that outside world. Home where we can be ourselves, huh?" Mary smiled at Greg, and her eyes twinkled. "Just us."
She stepped over to the TV, which was still on, and put her hands on the top and then shoved her ass back, right in Greg's direction, until stood with her back arched, ass up in the air, legs straight and spread.
"Lemmie ask you something, baby dear...you don't think my ass is too big, is it?"
Greg drank in the sight in front of him, his mother posing like a hardcore model, her ass big and round and bursting off her frame. He took a sip of beer so his mouth wouldn't be too dry to reply.
"Shit, no."
"What about these thighs?" She ran a hand over the inside of her thighs, squeezing and caressing. "These tits? Not too much mommy-meat for you to handle, is it?"
"Fuck no."
Mary stood up straight and walked over to Greg, intensity in her eyes.
"Oh yeah," she said, "I love to hear you swear." She stood over him, looking down at his seated body, and then into his eyes: "You're a nasty boy, aren't you?"
"Yeah," he was breathing heavily now. "I've got a totally fucking dirty mind."
"Mmmmm," she purred. "Like mother like son."
She turned around and faced away from him and straddled his outstretched legs. She brought her hands back and smacked her asscheeks: -smack!-smack!-smack!-
"You want this ass in your face?"
"Oh, fuck yeah mom. Back it up."
Mary bent over and supported her body with her arms on Greg's knees until she'd lifted her knees onto each armrest, and then shimmied her backside toward her son's face.
Greg was enraptured as he saw his mother's big round ass head towards his face - the way that the tights stretched over her curves, and the threads seemed ready to split right at the crack of her ass - and then she was on his face, pushing his head and neck back into the headrest. He brought his hands up to grab and knead her fleshy asscheeks.
As soon as Mary felt her son's hot breath between her legs she went wild, pushing her ass onto Greg's face and rubbing it up-and-down and side-to-side like an animal at a scratching post.
"RRRrrrrr-MMMmmmmph!" Greg growled in pleasure, his voice muffled as his head was stuck between his mother's ass and the headrest. He tried press into her tights, to stick his face as far as it would go up her crack.
"OOOooooh...that's good!" His mother growled. "That's even better than I imagined."
After the initial frenzy she calmed down a little. She pushed her torso up to a vertical position, and ran her hands idly down her front. "You like that, huh? Can you breathe back there?" She thrust her hips forward a little to give Greg room to answer.
"Fuck, I just want to breathe-in your ass!" he growled, and then pulled his mother by the hips back onto his face.
Placing her hands on her knees, Mary casually worked her ass over her son's face as she began to speak: "Y'know son, I've got something to confess. Maybe two separate things.
"Your dad called me a 'dirty cheating whore', among other things, before he left." Even in the frenzy of lust, this note about his parent's divorce made Greg a little sad. "He was wrong of course. Except, except for one time...
"We were vacationing in Mexico - you were just little and we'd left you with my parents. Anyway, my whole life I've been self-conscious about my big breasts, and of course my big ass. Hell, sometimes it felt like everybody was always bumping into it, or I'd always bump something with it. Anyway, your father had discovered the complimentary cocktails in the hotel bar, and he usually could hardly stand by noon.
"I got in a huff and decided I'd just go on the town alone. Somehow or other I got into a conversation with this lovely young brown man - couldn't have been much older than you are now, if that. He didn't make any secret that he loved my ass, and pretty soon we'd gone up to his ratty little apartment..."
Mary was still doing a slow-grind on her son's face while telling the story, but Greg was as captivated with the story his mother was unfolding.
She continued, "He didn't take more than five strokes in my pussy before he stuck it in my ass." She began moving her ass up-and-down on her son's face. "Jesus Christ it was kinky - it was out of this world...mph...I felt so hot and nasty and alive...ungh...I had these crazy whole-body orgasms that I'd never had before.
"We were lying there naked after we were done, and then three of his friends came in - I guess he was sharing the place with them. They all got their cocks out and wanted a go at my ass too, but I got nervous and begged off and got out of there so fast I couldn't even find the place again for the rest of our vacation...sometimes I'm sorry I didn't take his friends up on the offer."
With all that his mother had shown him these last few days, Greg was still surprised at this revelation.
"And..." she continued, "And I thought that would ever be my last chance, other than toys. Last chance, because who could I find that both respected the woman I am, and yet give the slut I am a good fucking-over? Nobody...until I found all your porn, Greg, and figured out what turned your crank."
She pulled her ass back and looked at her son over her shoulder. "But you, my own flesh and blood - you've got that anal lust too, don't you, you sexy boy?" She brushed his hair, ran a hand across his cheek.
"Yeah mom," he huffed in reply, lips wet with saliva, "I got that lust for your ass."
She thrust her ass back toward his face, "Get these fuckin' pants off!"
He tried to work them off her hips.
