Jacob's cock moved like a well-lubed piston plunging up and down Michelle's anal cavity. The spongy walls of her butt-canal smothered the thick teenaged rod, casing it with hot buttery love.
It seemed like such a natural home for Jacob's large penis. It fit so snuggly and perfectly that it was almost as if his cock were made for Michelle's ass.
Each time his bulbous cock-head sunk into the deepest region of her furnace, he felt the magic that few boys would ever feel. It was like a million little butt-ferries whipping their tongues against his big pink mushroom, hot greasy froth spewing from their mouths.
The butt-ferries would only have a moment to work their magic, before the yawning bulb would sink back down into the smothering pit.
But then, like it never left, it would rise from the blackness, mouth agape and dribbling it's milky excrement. Reaching it's peak the cap would stretch and balloon as the butt-ferries attacked.
This process would go on at least a hundred times before finally, reaching it deepest point, the bulb would flex and a pulsing blast a boiling hot semen would erupt from it's piss-hole.
Jacob moaned as he felt his mom on his lap. She was facing away from him. They were on the sofa in the living room. Michelle was dressed, but her skirt was hiked up to her waist as she bounced on her son's dick.
Jacob's shorts were down to his ankles. His arm was around Michelle's waist, his head resting on her back as her big bubbly ass-cheeks slapped against his groin.
As his cock pulsed Jacob heard the garage door open, announcing his father's arrival.
"Relax and cum, sweetheart... We have time." Michelle said softly as she worked her ass on his spitting prick.
It was the seventh time he had cum in his mom's ass that day and at this point he felt like a blubbering ball of dough.
When his cock was through pulsing Michelle lifted her ass from his lap and Jacob's pipe popped from her hole. A strand of jizz clung to his cock like a string of melted pizza cheese connecting to her asshole as it rose from his lap.
Jacob watched his mom's sphincter tighten, severing the milky rope. The skirt fell, covering the big beautiful ass that he had spent the entire day pounding.
Michelle smiled back at him.
"My little rump-rider's all pooped out. Rush upstairs and get a shower." She said.
Hearing his dad's car door was extra motivation for him to get his ass off the couch and upstairs.
As he washed himself Jacob reflected back on his most amazing day. For every one orgasm he had, his mom had three. He remembered the look on her face as she came, the way she would stare into his eyes, like a helpless little girl, cumming on the dick of a well hung stud.
Later that evening Jacob was at the kitchen table studying when his mom stepped into the room. She had on nothing but a big silk pajama top. Her hair was still wet and slicked back from her shower.
"How goes the studying?" She asked.
"Okay I guess. Some of these words are a pain in the ass." He said.
"Need some help?" Michelle asked.
"Sure, if you want." He said.
Michelle sat down next to him at the table. He took a second to her admire her long silky-smooth legs and adorable little feet.
"Let's have a look." She said.
As his mom looked over the spelling words Jacob noticed that her pajama top was unbuttoned nearly half-way and her long gaping cleavage was peeking out.
"Wow, some of these are tough. Tell you what, how 'bout I use these in a sentence and you give me the definition, okay. Let's start with this one... Inevitable. She said.
"Once Jacob sunk his boner into his mom's butt-hole, popping his cap was inevitable." She said.
"Eventual." Jacob smiled.
"Very good." Michelle said.
"Substantial... One thing Michelle loves about her son is that the length of his manhood is quite substantial." She said, looking into his eyes.
"Large." Jacob smiled with a tinge of pride.
"You got it. Large, strong and yummy." She grinned.
"How 'bout this one... revelation. Discovering how amazing my son was in the sack and how good he could make me feel was quite the revelation." She said.
"A surprise." Jacob said.
"Yep... Insignificant... My baby boy is starting to make the other cock in my life seem quite insignificant." She said.
"Unimportant." He smiled.
"Very unimportant." Michelle said, staring back at him.
She searched for another word.
"Consequence... A son making his mom feel like a little girl again can have a very orgasmic consequence." Michelle said.
"Result." Jacob smiled.
"Right again. How 'bout attentiveness. When a mom without panties sits down and spreads her legs..." Michelle started, as she brought her foot up and rested her heel on the chair.
This caught Jacob's attention and he got a birds eye view of her cunt as her shirt rode up above her waist.
"It can surely spoil her son's attentiveness." She said.
"You can say that again." Jacob muttered.
"Wrong." Michelle giggled.
She brought the other foot up too and scooted her butt to the edge of the seat.
Jacob gawked at her beautiful matronly snatch. Michelle's big labial pedals drooped to the side making her genitals look like fat pink pouty lips. He saw her puckered anal ring, a reminder of where he spent his day.
Michelle ran her fingers down onto her quim and gave her labial meat a half-dozen sharp slaps.
Suddenly, the phone rang and Michelle jumped up to answer it. Jacob watched as her tits rocked beneath the thin silk shirt.
"Hello." Michelle answered.
"Is Jacob there?" A soft girl's voice asked.
"Who is this?" Michelle asked.
"Lisa." The voice answered.
Michelle got a perturbed look about her.
"Look, sweetie, my son's not interested in you." Michelle said in a snotty tone.
Jacob got up and reached for the phone.
"Mom, just let me talk to her." He said.
Michelle turned from her son keeping the receiver to her ear.
"Can I just speak to him?" Lisa asked.
"No, you cant. Don't call here again." Michelle said sternly, hanging up the phone.
"Jesus Christ, why are you trying to run my life!" Jacob said angrily.