JJ got home from school and went to his room to masturbate again. He had seen Sally at school but she had kept her distance. On one hand, his long-time tormentor wasn't actively bullying him anymore, but on the other hand the sight of her kept reminding JJ of the sex they had the previous week, which made him horny. Now, hours later, he needed to relieve himself.

After he spurted into a tissue and left his room, his sister Regan watched him through her slightly open bedroom door. She wasn't going to, she told herself...she wasn't...

Once she heard JJ start up Netflix, she rushed into his room. Sure enough, there was a fresh tissue full of his fantastic smelling cum in his trash bin. She grabbed it and returned to her own bedroom, fastening the door behind her.

She gave the tissue a solid sniff. Ohh, it smelled so good! she thought. Her pussy had already started to moisten at the thought of what she now held in her hand, but as she smelled her brother's cum it became very wet indeed.

She stripped naked, revealing her slim, pale freckled body, got onto her bed, and opened the tissue up next to her. She dipped one finger into the warm cum while the fingers on her other hand started to massage her prominent clitoris.

Why did her brother's cum make her feel like this? she wondered. No, she corrected herself, half-brother. That made this less weird, sort of. JJ's dad had knocked up her mother and disappeared, and the poor single mom-to-be had met Aaron, Regan's dad, during her pregnancy, so Regan had been told. Regan herself had arrived a year after JJ was born.

She slathered some of JJ's cum along one nipple and its small, pink areola, and felt it stiffen. She gasped as her other finger continued to pleasure her clit. She had only started masturbating a few months ago, but she loved it. She felt that she might be getting close already, and used her finger to gather more of JJ's cum.

She moved one hand up to massage one of her small breasts while she moved the other down to continue to play with her clit. Then she realized what she had just done, and looked down.

Her clit was now covered in JJ's sperm! She had moved the wrong finger down there! That was dangerous! But that didn't stop her from continuing to play with her love button. She was getting there...just a bit more...her nipples were so hard now...

She moved her hand from her breast to gather more of JJ's cum on her fingers, and then both hands were between her legs. So dangerous...gotta be careful, she told herself. Her last period had started just a couple weeks ago, so she was pretty sure that she was currently fertile. She felt her pussy twitch at that thought.

As one hand diddled her clit, the other rubbed her brother's cum along the outside of her pussy lips. That was safe, right? Just not inside... Her pussy twitched again. So close...

She continued to massage her clit as her other hand dipped into the last of JJ's cum and returned to her pussy. She had to cum! She needed...she needed...

She felt her fingers slide between her pussy lips, pushing the dangerous seed inside her sopping cunt. As her brother's sperm slid into the forbidden depths of her vagina, she arched her body and cried out as pleasure exploded from within. "Oh-hhhh! AaaAHHH!" She jammed those fingers inside herself, thrusting them like several small cocks, pushing her brother's dangerous seed deeper into her fertile teenage body.

Then, overwhelmed, her body fell limp.

In the living room, JJ thought he heard his sister yell. Maybe she's playing video games, he thought. She sometimes got loud when she was losing.

---

That night, at dinner, Regan wouldn't even look at him. Great, that's two women ignoring me, JJ thought.

JJ's stepdad Aaron, his copper-colored hair matching Regan's, asked the kids about school. Both gave noncommittal grunts. Their mother, her blonde hair lighter than JJ's, shook her head; teenagers!

Regan ate quickly and then asked to be excused. She had done her best to flush her brother's (half-brother's!) cum out of her pussy after she had recovered from her massive orgasm. She couldn't believe what she had done! And now she was finding her brother (half-brother!) attractive. She was mortified.

---

Safe in a hotel room that his latest conquest (sleeping contentedly next to him) had paid for, John opened the file he had stolen from the federal agents who had captured him. As he hoped, they hadn't identified him, nor had they figured out his ability. He opened the sealed envelope Agent Sandoval had given him.

At first he wasn't sure what he was looking at. It was from one of those ancestry websites, identifying someone from his old home town. Child match, it said. The agents had taken blood from him after he had been captured; had they identified his parents? he wondered. Then he looked closer. The birth date of the matching person was 16 years ago.

His eyes widened. He had a child! And there was an address for the mother.

---

The next day after school, Regan went into her brother's room to find that he hadn't whacked off. She was disappointed, but told herself that this was for the best. She couldn't keep doing this!

She went into the living room to find JJ sitting there on his phone. Her nose itched, and she sniffed and looked at him...why was he so attractive all of a sudden? Just a few days ago he had been her ordinary, creepy half-brother.

She sat next to JJ and he side-eyed her but didn't say anything...she didn't normally want to hang out with him.

"JJ?"

"Yeah?" He continued to play on his phone.

"Would you rub my back?"

He turned and found her looking back at him strangely. "Um..."

"Pleeaase? I think I pinched a nerve in my shoulder." It was true; her massive orgasm the previous day had caused her some lingering discomfort there.

He put his phone down. "I...guess...?"

"Oh goody!" She got up, pushed him back on the sofa, and sat down between his legs on the cushion, her back to him, uncomfortably close. She could really smell him now, and felt her pussy get wet.

He began tentatively rubbing her shoulder around her neck. "Lower," she said. Now he was rubbing above her shoulder blade. "Lower." Now he was in the right area, but her bra strap kept getting in the way. She reached back and under her t-shirt to unfasten it.

As she slipped the small bra out from under her shirt, JJ gasped. "Regan!" He had stopped touching her.

She looked back at his handsome face. "It was getting in the way. C'mon!" She shook her back and hips, and JJ felt her butt rub along his penis, which had started to fill with blood due to her warm closeness, and the fact that she had just removed her bra in front of him.

He moved his hands to her back again, rubbing along her shoulder blade.

"Almost..." she said, and then she pulled the back of her shirt up to her neck. "There, now you can see what you're doing."

JJ was looking at the pale, freckly, naked back of his sister. He could see the inward curve of her waist, and how it flared outward again near the waistband of her jeans. Shit, he thought, was it happening again, now with his sister? He pushed under the curve of one of her shoulder blades and she sighed. It seemed that he had hit the right spot, so he used more pressure.

But the stray thought about his recent, strange sexual adventures had its expected effect, and his cock became fully hard.

Regan felt it. Was she turning him on? she wondered. Her pussy gave a little twitch at the thought, and she wiggled her butt against it.

JJ scrambled out from behind her. "That'll have to do for now...I gotta go." Then he ran to his bedroom. On the way out of the room, though, he made the mistake of looking back and caught sight of some of his sister's sideboob before she secured her t-shirt.

Safe in his room, he pulled out his cock and started to stroke. He kept trying to think of how Sally looked as he rammed his cock into the tall girl, but Regan's smell, the sound of her sighs, and the sight of her slim back and that sideboob kept intruding. Finally, his mind conjured up the vision of him pushing his sister (half-sister!) forward off of the couch, pulling down her jeans, and ramming his cock inside her slim body until he filled her up with his cum, and he grunted, spewing a load into a hastily-grabbed tissue.

Regan had waited until JJ had gone into his room before she crept up to his door. She listened to her brother pleasuring himself, and almost came herself when he grunted, no doubt filling up another tissue with his sperm. She quickly stepped into her room and kept the door open a crack to watch.

Within a minute or so, JJ left his room and then she heard him leave through the front door. She dashed into his room, found her prize, and retreated to her bed. Her clothes were quickly discarded as she jumped onto it.

She slathered her fingers with his still-warm cum and used them to frig her clit and tantalize her pussy lips. She had to be careful not to get any inside herself this time!

She closed her eyes and concentrated on the pleasure. In her mind's eye she saw her brother, stroking his no doubt beautiful cock as he thought about...

...her. She opened her eyes, realizing: she had turned him on, made him hard, and this was the result. He had produced this load of cum thinking about her. This cum...was for her.

She grabbed the tissue and shoved it, cum-side-up, as deep inside her pussy as she could. Her body exploded in pleasure as she pushed her brother's entire load of dangerous sperm inside herself. "Uhh...uhh...uhh..." she moaned as orgasm after orgasm washed over her, her hips instinctively rising as she did so.

Then she passed out, her knees raised and her hips still elevated. As she lay there, insensate, her brother's sperm slipped closer and closer to her cervix and their ultimate, preprogrammed goal.

---

John ran up to the tractor-trailer truck as it pulled over. "Hey!" he greeted the driver as he climbed up into the cab, "Thanks for stopping."

"No problem, fella," said the fortysomething guy, "glad to have someone to talk to. Where ya headed?"

"East," John responded, pointing.

"Well, that's where we're goin', mostly."

"We?"

"Me and the missus," the man said as he tilted his head back toward the sleeper compartment with its drawn curtains. "Name's Earl...Ina will say hey when she gets up for her shift in a few hours."

John shook Earl's hand as he likewise introduced himself and hoped that Ina didn't take to him. Too much exposure to his pheromones tended to lower the intelligence levels and inhibitions of women, and if she was driving, that could be dangerous.

---

Agent Carmen Sandoval finally got the results from the lab. She hated waiting.

She perused the file. John Doe, aka Casanova, had a low sperm count. That was very good, not only for Carmen, but for every other woman he had raped. Otherwise, with his ability, the man might have been able to create a small army of children in the last 15-20 years.

She thought about his sperm, still alive inside her after a couple of days, and felt sick. The morning after pill she had taken had caused painful cramping, but would ensure that she wouldn't be having his child, low sperm count or not.

She got up and paced. She had been raped! She should be crying, vulnerable, in need of therapy, but when she thought back to the incident, all she could remember was the pleasure. Did all of his victims come away with this strange aftereffect of pleasant memories?

---

Regan woke up the next morning feeling refreshed and looked down at herself. She was naked, and something was sticking out of her pussy! She reached down and pulled out a bit of tissue. Then she remembered: she had taken that tissue, full of her brother's sperm, and shoved it right up her puss! What had possessed her to do such a thing? Then she remembered the incredible multiple orgasms that had followed...oh, that was it.

This was probably still her fertile time of month, so that had just been stupid. JJ's sperm had been soaking into her cervix all night, but she went and took a shower anyway, doing her best to clear any remaining amounts of his dangerous seed from inside her. When she came out she almost bumped into JJ as he came out of his room.

How had she ever thought that he was handsome? she wondered. He had beady eyes, a bulbous nose, and he was the same height as her, even though he was a year older. Not attractive at all. Why had she gone crazy over his cum? She felt sick.

She shoved past him and went into the kitchen for breakfast.

What was that about? JJ thought to himself. Regan looked pissed off at him. Was it because he stopped massaging her back last night? Bitch.

---

It was dark, and Ina pulled over to the side of the road at John's insistence. She had been swerving, paying more attention to him than the road, as he had feared. Earl was asleep in the sleeper compartment, but Ina, an attractive, curvy platinum blonde of about 40 years of age, crooked her finger and got John to follow her back to the trailer.

She unlocked the back door and climbed in. When she turned on her flashlight it revealed dozens and dozens of mattresses! It didn't take long to get one down and flat, and then Ina was pulling John down on top of her. The flashlight fell to the side but still provided enough illumination for them to see.

They ground their crotches together and kissed for several minutes before she got frustrated and turned John over. They both quickly pulled their jeans off and she climbed astride him, lining his cock up with her trimmed wet pussy.

"Awwaa..." she moaned as his cock slid easily into her. She had been smelling him for over an hour, so had produced a lot of lubrication. She bottomed out and ground her crotch into his.

While this was a nice diversion, John wanted to get back on the road. He grabbed her hips and started to thrust up into her. Ina moaned and lay her head next to him on the bed as he sawed into her. "Gonna fill you up, baby..." he cooed in her ear.

She reared up on him, looking concerned, but just for a moment until she saw his face again. John knew that she was worried about pregnancy, but she had been breathing in his scent long enough that her thoughts were scattered, easily overwhelmed by the sex hormones her own body was producing to match. She started bouncing, matching his thrusting from below.

Soon he reached his peak. "Nn...aaaahhh! Fuckin' take it!"

As Ina felt John spurt his seed inside her, her own orgasm overwhelmed her. "Ohh--ohhhhh!" She fell upon him again, her body shaking, her fertile insides twitching in pleasure as her body sucked his dangerous cum deeper inside.

As they calmed down from their mutual orgasm, they heard the truck's cab door close. "Ina? Where'd you go, hon?"

"Shit!" they both hissed. They quickly pulled up their pants and barely got to the trailer door before it opened wide. Earl was there, with another flashlight.

"What's goin' on?" he asked his wife.

"Um...um..." She looked to John.

Shit, John thought, she'd be no help in her current low-intelligence state. "We heard something shift back here on the last turn, so we pulled over to make sure nothing got damaged."

"Yeah? Lemme see..." Earl pushed past John and climbed into the trailer.

There was no chance Earl wouldn't figure out what had really happened once he saw the mattress flat on the floor with a pool of cum on it. John pulled Ina from the trailer, slammed the door, and fastened the latch.

"Hey!" they heard from inside, and Earl slammed his bulk into it. It held.

---

John gave Ina a smooch as she dropped him off at a crossroads, and a wave as she pulled away. Her head would clear soon enough and she'd let Earl out of the trailer, but even if they turned around, they wouldn't know which road John had taken.

Soon another car came along and pulled over to pick him up. Driven by a man this time, thankfully.

---

JJ's life went back to normal at home. His sister ignored him again. School was actually a little better, as Sally likewise ignored him. It still hurt JJ to look at the tall, pretty girl, though, as she no doubt intended, he thought.

Over a week passed. He sighed.

"What's the matter, JJ?" his mom asked from the other end of the couch. Her nose itched, and she sniffed to clear it.

"I...nothin', Mom," he replied sullenly. He could hardly tell his mother that he missed sex.

Debbie looked over at her teenage son. He was becoming so handsome, just like his biological father. Her son was now about a year older than John had been when she had met him and had their whirlwind romance that ended with her pregnant and him in the wind. Just as well...she had been 18, and could hardly marry a 15-year-old! She had been lucky to meet Aaron, the man who would become her husband a few months later, a fine man who wasn't put off by the younger woman's pregnancy.

At the thought of JJ's father, Debbie felt moisture between her thighs. Damn that boy...well, John would be a man of about 31 now, she realized. Thoughts of him tended to make her horny, due to how often he had made her cum in those scant few days they had been together as he repeatedly filled her up with his babymaking seed...

She felt flushed and her nipples went hard. My goodness, she thought, she was really horny today. She went to go put her diaphragm in, and after that she'd jump her husband, who was working in the backyard.

To be continued...

Chapter 5

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