In the spirit of "Scary Movie", Epic Movie", etcetera.
A single woman decides to have a child, and takes fertility drugs in order to produce eggs for the in vitro fertilization.
She has a son.
A year later, when she goes to check on him, there are two boys in the crib. She calls the police,
who then treat her like she's crazy (reference to Changeling) and say she always had two children.
Further testing proves the two are identical twins.
On the boys' second birthday, mom finds four boys.
It becomes apparent that they are dividing on their birthdays.
On their third birthday, she becomes octomom.
A scientist begins working on why this is happening.
The story moves through the ridiculous problems of having 32 identical 5 year olds entering kindergarten, 1024 ten year olds...
The scientist and mom have sexual tension between them (natch)
Eventually groups of the siblings have to be relocated to other cities, states, countries, even continents.
More complications happen as the siblings find love, only to have to compete with themselves for the same partner after their next birthdays.
The scientist and mom fall in love.
Finally, crisis is averted when, on their 18th birthday, none of the 131,072 divides. The scientist determines that the natural slowing of growth has ended the division of the boys.
The boys all get married
cut to the scientist and mom looking at a computer model of DNA
"yes, it seems there is a mutation here which"
cut to montage of the boys with their 131,072 mates, as the voiceover of the scientist continues....
"could be passed on to offspring"
[choir of voices - are the boys and their mates having orgasms, or screaming in fear?]