Billy was 7 and his older brother Toby was 13. Mom had a job overseas for a year and grandmom would be living with them. Grandmom was a sprightly energetic woman at 58. She had a secret thing for little boys and her pussy just gushed when her daughter asked her to take care of her son's for the year. She loved her grandsons and had lots of nasty fantasies she wanted to act out with them.
Even though little Billy said he could bathe on his own, she insisted on bathing him herself. She took him to the bathroom and turned on the shower and had him take off all his clothes. He stepped in the shower and then saw grandmom remove her clothes and step in the shower with him.
She towered over him, he barely came up past her big furry vagina that curved up her round bladder to her slight belly. He looked up and saw her big thick nipples on slightly drooping breasts.
The hot water made him want to pee and he let it out.
"It feels good to pee in the shower, doesn't it?" Grandmom said. She reach for her grandchild's penis and pointed it up at her so his stream of piss landed on her, and she squatted down, taking the last of the boy's pee on her smiling face. Billy was really too young to think much of it, but it did seem a little strange.
The hot water continued running on his back, and grandmom stood up, splashing some water on herself. Then he saw her put her hand into her bushy patch and a warm stream of piss came out, which she aimed at Billy's little body.
She looked down at her grandson that she was pissing on with a big smile.
"Will you taste some of my pee darling, please?"
He knelt and put his face under her stream of piss and opened his mouth, giggling.
"That's a good boy! Drink it! Yes honey, that's good!"
She leaned in and washed his hair and his little back, and then she soaped up his little penis and butt real good. Billy stood there, his arms held wide as his big naked grandmom vigorously rubbed his bottom and private parts with soap. She kept rubbing on his little penis with her big hand until it was still and she started making funny noises.
"Mmmm, oh yes, mmm, little darling. You're such a cute little boy. Hows that feel when I rub your penis? That feel good honey?"
"Uh huh!"
She squatted down next to the naked little boy and jacked him off slowly. Billy watched grandmom's other hand reach between her legs and rub her hairy privates. Grandmom jacked off her cunt while stroking her young grandchild's hard cock. Then she took her hand from her nasty fig and reached between his legs and felt for the little boy's sweet anus.
"Now we need to clean your little bottom. Turn around."
She rubbed his cute hairless little crack and pushed the tip of her finger in his anus.
"Just relax for me, we need to clean you good."
She sank her finger all the way up his butt and twisted it around. Her pussy was soaking at this point fingering this little boy.
She pulled her finger out and tasted it.
"OK! You're all done! Nice and clean!" she said cheerfully as he smiled back.
"Now, I need to teach you how to clean me out, Okay?"
"Sure!" he said enthusiastically with such a cute face.
"Now take some soap and get your cute little hands nice and soapy. Yeah!"
Grandmom stood up, towering over the little boy. She turned around and spread apart her big fat bottom.
"Rubb those soapy hand up and down my big bottom. Clean it all good for me honey."
She enjoyed the feeling of her sweet grandson's little hand wash out her buttcrack.
"Oh yes darling! That's so good!" she merrily moaned. "Go ahead and stick a finger in my hole. Oh, yes!"
The little boy stood behind his grandmother's fat ass, fingering her anus.
"Oh, yes... good. Now stick two of your fingers in my bottom and clean me out there."
Little Billy giggled as he twisted two fingers around in grandmom's poop hole.
"Oh yes Billy! Good boy. Now push them in and out like this-"
She reached around and took hold of his little wrist and pushed his fingers up her ass, then out, and she moved her hips back and forth and started fucking the little boy's fingers.
"Oh, oh, yes Billy, Don't stop, uhh, yessss"
Billy noticed her hand was back rubing her privates as he moved his fingers in and out of her butt hole. She made more and more moaning noise and incredible swear words.
"Yesss, oh, yes, Billy, up my shitter, yes little boy. Oh FUCK YES!!!"
Grandma convuslsed suddenly, cumming on the little boy's fingers shoved up her butt."
She turned around, flushed and squatted down to the little boy. "Yes darling, you're so good. You make grandmom feel so good. Now give me a sweet kiss."
She gave him a few kisses on his darling little face and they rinsed off and got out of the shower.
Later that night Billy was alone watching tv and she came in with a towel and a bottle of chocolate syrup and sat next to him on the sofa.
"You want to play a game sweetie?"
"Sure Grandmom!"
"You like chocolate don't you?"
"Uh huh."
"You can eat all the chocolate you want but you have to eat it where I give it to you."
"Okay."
"I'm going to squeeze this chocolate up my bottom and I want you to eat it all out."
She peeled off her elastic sweat pants and leaned back on the towel on the sofa and pulled her ankles back by her ears.
Billy just looked on wide-eyed as his grandmom exposed her privates to him this way. Her figure was very curvy and her very wide hips curved nicely into a deep butt crack.
Grandmom took the bottle and put the tip of it in her anus and squeezed for about 20 seconds. She emptied about half the bottle of chocolate in her bowels. She pulled the bottle out and a little syrup dripped from her anus.
"Go a head and lick it all out."
He put his sweet little head up to her anus and licked the chocolate up with pleasure. He looked at grandmom, not sure what to do.
"Go ahead baby and stick your tongue in there and suck it out of my butt!"
She felt the little boy's tongue push into her sphincter and eagerly taste her chocolate. He put him mouth on her shitter and sucked out all the chocolate as grandmom encouraged him.
"Good boy! Eat it all up! Suck that chocolate out of my ass!"
The little boy suckled on his grandmom's exposed anus, his little face wedged in her deep, round crack.
He had chocolate all over his mouth as he sucked the last of it. He looked up at grandmom with anaughty smile. She smiled back.
"Get it all? Put your fingers in there and see if you can't get some more?"
He dug his fingers in her sphincter as she led her ass open for him, moaning "Ohhh, yesss."
"Honey, put all your fingers in there, yes..." The little boy stuck his four fingers in her big butt and managed to get his thumb in, and he fucked her in and out like in the shower. "Fuck, oh yes, of yes you sweet little baby!"
He vigourously fucked his grandma's ass with his hand and liked it when she moaned and rubbed her vagina as he did it.
"Oh fuck it Billy. Fuck gramdmom's fat ass! I want you to put your whole hand in there. Fist my ass baby!"
Billy pushed his hand more and more up grandmom's ass. After his knuckles sunk in, the rest of his hand went deep into her butt up to his wrist. He had his whole hand in grandmom's big ass, pushing and pulling as she rubbed her hair pussy.
Finally grandmom convulsed and moaned and she came with her grandson fisting her nasty big ass. "Oh fuck yes honey!"
to be continued...