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You are here: Home / Incest sex stories / Brian’s Birthday Surprise Pt. 01 by Tacocarnitas

Brian’s Birthday Surprise Pt. 01 by Tacocarnitas

Adult story Editor July 14, 2024 Leave a Comment

Brian’s Birthday Surprise Pt. 01 by Tacocarnitas

Looking for a steamy adult sex story to spice up your night? Dive into "Brian's Birthday Surprise, Pt. 01" and discover a tantalizing tale of seduction and pleasure that will leave you wanting more. Get ready for a wild ride as Brian is in for a birthday surprise like never before. Read now!<br/> A quick note: My stories aren’t for everyone. If you don’t like very petite women with really huge breasts, mother-son incest (or the use of the word “mommy” in a sexual context), and totally unrealistic scenarios, they might not be for you. If you like those things, great! But I can’t stress this enough: ***These scenarios are not meant to be realistic.*** At all. They exist in a fantasy world. If that, or anything else I’ve mentioned, is not your thing, there’s plenty of other stuff to read on this site. If it is, though, please rate and leave a comment! Thanks. (All characters are over 18 years old.)

***

Brian had always known his mother was both extremely petite and exceedingly sexy. Petite, that is, in all places but two: her round, firm butt and her cartoonishly massive tits.

She was in good shape: Years of working out and yoga had given her slightly thick, muscular thighs, which tapered down to tiny, delicate feet, as well as a toned back and arms. (Her hands, however, were just as tiny as her feet.)

Mrs. Pepper almost always wore her long, auburn hair in an adorable ponytail, bangs framing her innocent, delicate face: a cute button nose, large green eyes with prominent lashes, and slightly puffy lips that most of the time seemed to be shaped in a sweet, almost shy smile. Mrs. Pepper was 42 but easily could have passed for 30, her youthfulness accentuated by her tiny frame.

And then there were her breasts. No matter what she wore, it was obvious that they were wildly out of proportion with her body: two gigantic, round balloons that pushed out t-shirts to the point that they revealed her toned stomach. At her size, it was impossible for them to look like anything but two basketballs attached to her chest.

Simply put, he was obsessed with them.

On the morning of his 18th birthday, he came down to the kitchen, wearing only pajama bottoms and a sleeveless t-shirt. There was his mother, sitting at the kitchen table, her gorgeous, just slightly thick, luminous legs crossed, a book nestled in her lap under a truly massive bosom. (How was she able to even see it? Brian wondered.)

Watching her with that innocent look on her beautiful face, her lucent hair tied in a ponytail with a scrunchie, he suddenly realized what she reminded him of: a little gymnast, with a frame that managed to be lithe, slightly muscular and curvy at the same time — but one that could never actually be a gymnast’s. Her chest was simply too gigantic, her top-heavy, big-bottomed body in sharp contrast to her height and general petiteness.

She looked up, gazing at her son with that sweet, innocent smile, and then sprung up from the kitchen table, her massive tits bouncing under a cut-off jersey; it had the name of Brian’s football team — the Cougars — emblazoned it, though the words were almost unreadable because of the roundness and forward projection of her huge bosom.

“Happy birthday, sweetie!” she squealed, running to him, her little, busty body jiggling as she did. She squeezed him around the middle: she was so short that her bosom pressed into his lower abdomen, her head into his chest. He did what he had started to do in recent months: he lifted her effortlessly off the ground until they faced each other. She smiled — by now, she was unfazed by her son’s immense strength — that gorgeous, slightly shy smile and kissed him gently on the lips, then began kissing him all over his face and neck, giggling as she did. She stroked the back of his head and kissed him again on the lips.

“I can’t believe you’re 18! My sweet little boy is all grown up.” She beamed at him instinctively wrapped her tiny hands around his neck and her legs around his torso, as if she were a small animal wrapped around a tree.

Her “little boy” had gone through an impressive growth spurt; he now towered over her 4’10” frame by almost a foot and a half. He worked out just as constantly as she did and had the muscles to prove it. His solid, thick frame and impressive strength had gotten him spots on the starting lineups of both the football and basketball teams.

That wasn’t all that had grown. His cock had gone from normal to oversized — about 9 inches when erect and as thick as his mother’s forearm. So thick, in fact, that when he masturbated, he had to do so with two hands. And he jerked off constantly. It was never enough. Huge ropes of cum would blast out of his throbbing prick, over and over. And the quantity never seemed to decrease; each time, he could have filled one of his mother’s coffee mugs. And, of course, the main object of his fantasies was his tiny-but-incredibly voluptuous mother.

She again kissed him all over his face. “I love that we can be so affectionate with each other, sweetheart,” she said shyly.

“Me too, Mommy.” He had never grown out of calling her that, and she had never objected.

“I still can’t believe how big you are.”

By now, she was surely feeling his hardening cock pressing against her groin. Was that part of her comment?

“My big boy,” she said, smiling that adorable smile.

“Um, Mommy? Can I ask you a question?” Without even realizing it, his gaze had drifted down to her immense cleavage, pushed up out of her cut-off jersey as her chest pressed into his. She was clearly pretending not to notice.

“Of course, baby. Anything.”

“When… when did you develop?”

“What do you mean?” Was she playing dumb?

“I mean your… proportions.”

“Ahhh. Well…” She released herself from her son’s towering body and he lowered her down until her little, naked feet reached the ground. She swooned at not just his sheer strength but how gentle he was.

“I hope you don’t mind me asking,” he said. “It’s just that…”

“What, sweetie?”

“No, I shouldn’t say. It’s sorta gross.”

“Well now you have to tell me!”

“A few of my friends… they were making guesses.”

“Oh. Well I suppose that’s flattering.”

“No, it’s gross. I’m sorry I asked.”

“It’s fine, baby. Sit down.”

He sat at the kitchen table, and to his shock and delight, she sat on his lap, nestling her cushy, round ass cheeks onto his groin. He was fully erect now, and though he was aware and a little embarrassed that she was now sitting on his turgid cock, she didn’t seem to mind. Her breasts just barely caressed his chest.

“When I was 18,” she said, running her hands through his hair, from the side to the back, “I was already really big up top. My first real bras were an E cup, though I was always spilling out of those.

“In college, I got even bigger, both my breasts and my butt. My bust grew to an F cup. You know what my nickname was? ‘Shortstack.'” She giggled. “Besides not being able to fit into clothes, it didn’t bother me. To be honest, I liked being stared at. I get… easily excited, shall we say. And I sort of love my body being on display. I also love playing with my huge bosom — squeezing them, tweaking my little nipples.”

A speechless Brian gulped and nodded.

“After you were born, they got much bigger, and stayed that way. That’s one of the reasons why I work out so much: they are a lot carry around. Feel how strong my back muscles are,” she said.

He ran his hand along her upper back — which was, indeed, quite muscular — and said, “Very impressive.” Once again, he realized that he was staring at her cleavage the breastmeat bulging out of her jersey. He quickly glanced up, but she had caught him and smiled at him.

“So, um–”

“How big am I now?”

Brian again just nodded.

She leaned into him, her bosom pressing even more urgently into his chest, and whispered sexily into his ear: “HH cup.” She leaned back and cupped her massive breasts, bringing his gaze once again to her cleavage. “I like ’em, anyway.”

His erection was already rock-hard and throbbing. So when his mother started slowly grinding her bottom into his groin, he thought he might explode in his pajama pants. “I guess you do too,” she said with a wink.

“Anyway!” his mother exclaimed with a smile, bringing her son back down to earth. “I wanted to talk to you about something else. The truth is that as you’ve grown… well, there’s no other way to put it: I think you’re really attractive.”

*She’s* attracted to *me*?, he thought.

“I know it’s wrong and sinful and I shouldn’t act on it. But you know since your Dad left, I’ve only been on a few dates. And the realization I had on your 18th birthday is that no one really interests me. Except for you.”

Brian couldn’t believe what he was hearing. The woman of his dreams — who he had assumed would forever be out of reach for him — was telling him that she wanted him.

“Wow, Mommy. I… don’t know what to say. The truth is that you’re the most beautiful, sexy woman I’ve ever met. You’re… perfect.”

The young mother bit her lip, her face flushing slightly. “That’s extremely flattering, sweetie. I sort of had a feeling you might have a crush on me, but perfect? Wow. And I’m especially glad you feel that way given your birthday present.”

He had completely forgotten it was his birthday.

“I thought it’d be fun if we made it a birthday week. And each day would have a theme.”

“I’m not sure I understand,” he said, staring hypnotically into her big green eyes.

“Brian… *I’m* your birthday present. And each day for the next week we get to do… well, all kinds of stuff together.”

“Um… sexual stuff?”

“Of course, silly! That’s the whole point. I even put together a list.” She reached into the top of her jersey, once again drawing Brian’s attention to her swollen cleavage, and pulled out a little, folded up sheet of paper from her bra. She unfolded it and handed it to him. “See?”

Brian gulped.

“Well, what do you think?”

As he scanned the list, he could only say one thing. “Holy shit.”

His mother giggled. “I thought you’d like that. Anything you don’t want to do, just say the word. But that’s all stuff that turns me on. So I give my consent for all of it — even the more… out there stuff. And day one starts–” She leaned in and kissed him deeply on the lips. “Now.”

DAY ONE: EXPLORATION DAY

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