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 Mommy moved back in with her boyfriend a few weeks after my last visit. 
She didn't tell me first and I was trying frantically to get in touch with
her.  Finally, after a call to one of her sisters, I found out the truth
and immediately got in touch with her.  She told me that her boyfriend was
leaving town in two weeks and she could spend five or six days with me. 
After the six hour drive, I knocked on her door.  We quickly found
ourselves on the sofa, buried in each other's arms, exchanging, I love
yous. My hand snuck down during this to grasp at her pussy through her
pants which increased the fervor of our kisses.  She sighed after a minute
and let her head drop onto my chest.  "I'll always love you," I told her.
"But I need to get some things out of the car and shower.  It's been a long
trip and I'm a bit stinky."

   She sat on the toilet and watched me shower, watched me shave my legs,
stomach, and chest as we made smalltalk.  As I dressed and did my makeup -
red eye shadow, gold eye liner, mascara, bronzer, and a subtle violet
lipstick - she headed downstairs for wine.  We soon found ourselves in the
spare bedroom, her nude and me dressed.  I latched onto her nipple
immediately.  I suspected she liked it more than sex.  She wrapped her arms
around my back and held my close as I whimpered in excitement.

   "Deeper, baby.  Pull it deeper into your mouth."

   After many minutes, I flopped over onto my back and raised my skirt. 
She began to play with my dick and then suck it as I begged, finally
lolling my head back, I felt her grow more enthusiastic, placing her thumb
at the base of my penis, which seemed to keep me from cumming as she milked
me.

   After so many small orgasms that I lost count, I pushed her roughly off
me, back onto the pillows and drove my tongue into her pussy.  It was
sweet. I sucked at her vagina as I had at her nipples, coaxing fuck nectar
from her as she finally began to moan for the first time since we had begun
making love.  I don't know whether she came or not, but when my jaw became
tired, I pulled up into a sitting position and pulled her legs over mine.
Positioning my cock at her cunt's entrance, I fed it to her pussy then
pulled her into my lap.  We clasped each others arms and proceeded to rut.
Odd.  During it, her face took on an impish cast.  It was all I could see
clearly, and looked years and years younger than typical.  She smiled back
at me as we rode each other, tossing her head back and closing her eyes
with each orgasm until I began to pull her head down and tell her, "Look at
me.  It's me, Michael.  I'm your baby, Mommy.  Your baby's dick is inside
you.  Your very own little boy.  You're fucking him.  Do you like fucking
your baby, Mommy?" She nodded enthusiastically then began to tilt her head
back again.  "No!" I jerked it down.  "Open your eyes!  Now cum, you
bitch." Her jaw dropped and she began grunting then finally gasped and
seemed to sag.  I fell back and pulled her on top of me until I could feel
the crack of her ass grinding against my balls.  I closed my eyes, sensing
that she was ashamed to watch me face and moved with her as she rode me to
orgasm.

   "One more," she said.

   "Do you want another one, Mommy?" I asked cockily and began thrusting up
into her.  When she came, the spasms of her vagina sent me over the edge
and I gasped, a gasp that turned into a long sigh.

   "Told you."

   "I love cumming in you, Mommy.  I love cumming in my very own Mommy."

   "I love you, sweetheart."

   "I love you, Mommy."

   We moved to the porch to smoke cigarettes, necking in plain view of the
neighbors.

   "I want to get fucked," I told her.  "Does mommy want to fuck her little
boy?"

   "Yes, baby."

   I jumped back inside and retrieved a very large dildo and harness from
my bag.  I helped Mommy into the harness and squirted copious amounts of
lube on the ten inch toy.  Instructing her to rub it around all over, I
helped her get the head then leaned over the kitchen table, grasping it
with both hands, wiggling my ass.

   Mommy lifted my skirt up and spread my ass cheeks.  I felt the tip slide
into me then overwhelming pain.  "Stop!  Stop!" I begged but she wouldn't
entirely, pressing slowly forward into me.  When it was buried in my ass,
she was kind enough to hold still until I began to grind back against her.
Loud moans erupted in my throat when she began to fuck me.  I had no choice
but to take her cock and I had no choice but to love it.  When my prostate
finally popped and I loosened, I grinned broadly.  "Yeah," I purred,
"that's it.  Fuck your little boy.  Fuck your whore.  Fuck him really good
with that monster cock of yours.  My pussy's been clasping on nothing all
day.  I need your dick." She slammed in and out of me and I did my best to
squirm back against her to show my appreciation until she reached around
and began fiddling with the head of my dick.  I shrieked.  I don't know how
long it went on, with me crying and whimpering, begging for dick, ready to
die from the overwhelming stimulation of her huge dick inside my needy,
spasming shitter.  "Rub my clit," I whined beneath clenched teeth.  Give
baby a good, good, good fucking." When I collapsed to the floor, exhausted
and she pulled out of me, I turned around and saw the dildo was mostly
clean.  "Thank you, Mommy," I said, rising to my knees and taking her dick
in my mouth.  She gently fucked my face for several minutes before pulling
away.  I sat back and gasped for breath on the floor.  Mommy leaned down,
grabbed my head in both hands and kissed my forehead.

   "You liked that, didn't you?"

   "Mommy," was all I could muster.
   "Hottest fuck in the city," she said with a smile.