The Twins

Story by belfast2

Ok, haven't figured out the formatting for multiple chapters. There's a second here, and I have a bad habit of ending on cliffhangers, and I should've left this as a one off.

Chapter 1.

Thwack.

Kevin was interrupted from his book as a foam pool noodle hit the back of his head.

“Dammit Katie!” He yelled, fully knowing who the culprit was. His twin sister.

“Last one in is a rotten egg!” She laughed.as she jogged by backwards.

Kevin looked up from his book to take in his sister. She was fully nude as always when they were relaxing in their backyard, holding the pool noodle. Her dark blonde hair looking radiant in the warm sun, her mischievous smile, her modest breasts lightly bouncing as she moved, her small penis flopping up and down. Yes, penis.

He was unfazed by this detail, of course, they were twins. Katie had been born with a penis instead of a clitoris, a hermaphrodite if you will. Their mother was fine with having a girl like Katie, one could even say delighted. The only thing that annoyed their mom was Katie’s early propensity for getting naked whenever she could and she’d worried about her daughter potentially exposing her specialness in public.

Thankfully they lived on an isolated property, so she could run around outside without clothes to her heart’s content, as she was doing now, sprinting towards the inground pool. It was an invitation Kevin couldn’t refuse. Tossing his book aside, he got out of his chair and started after the siren that was his sister, awkwardly disrobing as he ran, leaving his clothes strewn on the lawn.

She was already in the deep end by the time he got there, treading water, laughing at him as he was hopping on one foot, trying to get his boxers off. He lost his balance and fell into the pool. When he resurfaced, she was in outright hysterics.

“Way to go, dingus.”

“Oh, shut up.” He said, tossing his now wet boxers at her head, hitting her smack in the face.

“You’re gonna pay for that!” She said, grabbing for the pool noodle floating nearby, and went to hit him in the head again, but he splashed her in the face first. She splashed back, and the two continued to frolic in the pool, laughing and giggling, shouting playful insults at each other until they were exhausted.

“Nerd.”

“Bitch”

“Dweeb.”

“Nudist!”

At this point, they were very close together in the pool, treading water, their now erect dicks touching each other.

“Oh, come on,” Katie said with a grin, “you love staring at my tits when I’m naked. You wanna?”

“Hell yes.” Kevin said, knowing exactly what she meant.

...

The two had discovered masturbation separately growing up, and kept their initial forays into jerking off from each other. Gradually, though, when Katie finally crossed that threshold from playing with her new erections into her first full blown orgasm, she confided in Kevin. He’d recently done the same.

They continued experimenting separately, comparing notes in hushed tones at night. One day, Katie said she’d put something soft in a toilet paper roll and fucked it until she came. Kevin excitedly decided to try his sister’s technique, but was strangely disappointed when he discovered his own dick was just too big to fit in the tube. He told Katie, and that’s when things began to escalate.

“We have to measure!” She said excitedly jumping up. Finding a tape measure, they ran to Katie’s room and disrobed, both already hard with the excitement. “Wow!” She exclaimed. They’d been naked together plenty of times, but she’d never seen Kevin’s erection. “Ok, let’s see” she said, putting the tape measure to her own penis. “5 inches.”

Handing it off to her brother, Kevin did the same. “I don’t know, about 8. Is that big?”

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