                          Mother's Day
                         An Erotic Story

     Marie looked down at where her son's prick was splitting the 
plump lips of her daughter's cunny.  There was no other word for 
the child's sex.  Cunt or Vagina was too adult for the plump 
lips, complete bare of hair, that was slowly spreading to take 
her brother's penis inside her body, while slit or crack was too 
childlike for the young woman's sex that was so emphatically 
gulping her sibling's matching sexuality.  The sight of the two 
children making love that Sunday morning, was so beautiful it 
almost hurt.
     "Now you be careful, when you cum inside your sister," she 
told the boy; biting back the almost obscene addendum that wanted 
to go on in her head.  'She's only a little girl, she's not on 
the pill, and her period was over a week ago.  You could be 
getting your sister pregnant right now,' the words wanted to roll 
out.  But Marie almost bit her tongue keeping the thought to 
herself.  Both kids knew where babies came from, knew when the 
girl's period was, and what happened when pubescent young girls 
like her took a boy's thick white cum just teeming with millions 
of sperm looking for an egg to fertilize into her body.  That the 
two youngsters were completely unconcerned about such things; 
just enjoying the pleasures of being mated together like this, 
was what made their joining such a beautiful thing.
     Her son didn't answer; barely lifting his head from suckling 
on his sister's developing breasts to give his mother a glance 
that made her ashamed for saying anything.  Of COURSE he would be 
careful.  Her son loved his sister too much to ever take a chance 
on even hurting her by accident.
     Marie watched closely as the two siblings worked harder to 
get the boy's prick fully inside his sister.  Then the two kids 
slowly started working together to slide his swollen member in 
and out until they were both sweating and straining each time he 
jammed the engorged prick to the hilt in his sister's body until 
their pubic bones met and they couldn't get any closer.
     It was the girl who gave in first; a rising wail coming from 
the child's lips like an air-raid siren, as Marie watched her 
daughter cum in first squeaking wails and then full-out yells and 
screams of appreciation for the wonderful sensations her 
brother's penis was creating in the tight little tube of her 
developing sex.  Marie was once again astonished to see such a 
young girl in the throes of orgasm; the child's belly rippling in 
unconscious reaction to the pleasure her brother's prick was 
bringing to her.
     Feeling his sister's tight little slit cramping around his 
swollen penis was the last straw for my son.  Jamming his prick 
to the root in his sister's body, it was obvious the boy had lost 
it, and was ejaculating thick white gobs of incestuous cum into 
the little girl's womb; doing his best to see that every drop of 
semen filled with his potent seed went as far up in the child's 
belly as the two straining youngsters could put it.  One jab, 
then two and three, as surge after surge of incestuous cum 
rippled through the tube on the boy's prick and into the waiting 
fertility of his own sister's flat little tummy.  Neither child 
made the slightest effort or indication of disconnecting before 
every drop of the boy's potent seed was planted deep inside his 
sister's waiting and eager young womb where it belonged.
     It was quite a Mother's day present to give the young woman 
watching ... The first time her daughter became a mother herself; 
as her son fathered a child on his own sister.
