Day at the Beach(Futa/Male, underage, incest, excessive size/cum, public sex)

Hey all, I wrote this in response to my own picture post in the write a story for the picture above you thread.  I'm posting it in a separate thread to give others a shot at posting in that thread.  I just couldn't get this idea out of my head so I wrote it, and kept writing.  I honestly don't think I could keep a story under 1,000 words if I tried, it's not super long but it's longer than I intended.  This story is a trifecta of my personal favorite fetishes, futa on male, public sex and incest.  I did it as underage because the characters in the picture look too young to be 18, and incest because they look quite similar.

Take a peek for yourself .  Since you can't see their cocks I decided to stick to my excessive size trend because, well, I like 'em big.  I also tried to make it semi-consensual, but it's nowhere near non-consensual, just couldn't bring myself to write it that way.  For those who do not know, that picture was drawn by the talented Nobody in Particular or NIP.  Anywho here's the story, hope you enjoy it.  As always comments, criticism and adoring praise are welcome.

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Day at the Beachby IDE32

14 year old Jason Adams lays in bed dreaming of Michelle, a girl from his class and one of his sister's friends.  She won't give him the time of day though, he figures because he looks too feminine.  While Jason has started puberty, his body is still completely hairless and his face looks rather girlish.  He blames his futanari mother Alice, both he and his futa twin sister are splitting images of her.  It also doesn't help that his father took off shortly after he was born, he desperately wanted a girl but got Jason and Julie instead.  Without a male presence Jason grew up a little feminine, only recently realizing that he needed to act masculine.  His mother insists that he will become more manly as he gets older while his sister mercilessly teases him about being a futa that wasn't.

    Julie comes into his room, throws open the blinds and calls out, "Wakey wakey little bro!"

Jason moans and pulls the sheets over his head, he hates it when she calls him that.  She was born 2 minutes before him and hasn't let him forget since.  And while they are the same height, her dick is a good bit bigger than his, 10 inches long and 6 around instead of his 7 by 5.  Admittedly that's damn good for a 14 year old, they were both gifted in that department by their mother and her 19 inch long, 9 inch circumference monstrosity.

    "Five more minutes.", Jason groans out, followed by, "And stop calling me little!"

    "I'm just yanking your chain", she says while pulling his covers down.  "Speaking of yanking a chain...", Julie wags her 10 inch erection in his face, grinning down at him.

Jason can see that she is completely naked, her small, perky C cups in full view.  Her light blue eyes, identical to Jason's playf