Nina was nearly eight months along when she got the text message from her brother that fateful Thursday. 

I am coming in for the birth! Sandy insisted and I said okay. 

Her twenty-four-year-old heart skipped a beat, and the baby kicked.

Nina’s older brother, Owen, and his wife, Sandy, were teachers and would be off for the summer when the baby arrived. He planned on driving in from Davenport, her hometown, for a couple of weeks. Nina’s face lit up as she sat in her apartment near the base in Kansas City. Her army hubby, Drake, was currently stationed in the Middle East and would most likely not make it back for the birth of their first child.

Nina read the message again before responding, That’s going to be wonderful. Please tell her thank you! you guys are the best

She added a blue heart, knowing her older sibling would get their secret symbol. 

She sat on the couch and sighed as she rubbed her belly. Her brother had probably manipulated his wife into thinking it was her idea to come to help. Nina knew the truth. Owen wanted to be here for the birth of his child. 

“Daddy’s coming to see you. And will probably cum as well.” She took a deep breath and knew to save some energy for vibrator time tonight.

EIGHT MONTHS AGO

Owen McAfree was a horny bastard, no question. He had fucked his way through college, often having more than one girlfriend at a time. One set of sorority sisters agreed to share him for a semester. He was very gifted in bed. Not hung as much as keenly aware of how to please a woman. He had a great teacher, his sister Nina.

He was headed to see her before she and her Army hubby were to move all the way to Kansas City. He was sad she would no longer be able to pop by when she needed to chat or needed advice. They had a great open sense of communication. He was mostly going to miss her incredible body.
On the night of her eighteenth birthday, she had asked him to do more than the usual kissing and sucking they had been doing secretly for months. She asked him to actually fuck her, full-on real sex. He did not hesitate. She was tall, brown-haired, and had a face fit for the internet, where she often posted fun videos. She currently had five hundred thousand followers.

She also had a killer shape with to-die-for legs, a round ass, and tits that should not be legal.

As he drove, he was thinking about all the times they had been together. He wasn’t her first, by any means, but afterwards she said he was the best. From then on, they had sex whenever they were sure to not be caught, and once under risky, family Christmas party circumstances.

As he pulled into their driveway, he was happy to see Drake’s truck was not there. Perhaps he could get a last hot one in before they moved.

He entered without knocking, as always. “Yo, Naughty, where you at?” He had been calling her Naughty Nina since she first sucked his cock.

“In here, Mo.” She called him Moanin’ Owen as he was very vocal during sex.

He entered her sister’s marital bedroom and was happily surprised to see the woman of his sexual dreams splayed across the edge of the bed, skirt up, fingers lazily stroking her very wet sex.

He froze, a smile crossing his face as he watched his sister slowly slide her wet finger up and down her lips.

One button, then two, and finally all, undoing his shirt and sliding it off. He fixed his eyes on hers as she folded it slowly and placed it on a chair.  

“Jeez, Mo! Hurry it up already, I’m melting!” to prove it she began to dip a finger inside. “Drake won’t be back until tomorrow lunchtime. He’s pulling an eighteen-hour guard rotation.”

Still, he didn’t speak, his smile more devious. He undid his belt and then the waist button on his pants. The noise of the zipper lowering was his only noise so far. He did the man dance as he removed the pants one leg at a time while still standing.

She looked at the bulge in his jockeys and purred. She recalled how it looked, its large rim, the dark blue veins like pulsing ropes. Smaller than her husband’s but not significantly so. She knew that what Owen lacked in size, he more than made up for in technique.

Owen hooked his fingers in the waist of his jockeys and pushed down, bending slightly forward. As they reached his knees, he used his foot to push them all the way down. He stepped out of them and refocused on his sister. His dick jutted forward and slightly up, dripping and ready.

She threw her head back in desperation, her fingers going faster. She looked back through glassy eyes. His balls hung full. He hadn’t jerked off nor fucked Sandy; he had saved all his juice for his sister, Naughty Nina.

One step, then two, he methodically stepped to the edge of the bed. He placed his hands on his ass cheeks, pulling them apart. This movement always made his dick dance, but his sister was his only lover who had ever seen it. He still hadn’t spoken. He bent his face close to her pussy. He took her hand out and brought it to his mouth, wrapping his tongue around the fingers that tasted of her. His favorite

“Oh fuck, Mo!” she gasped as he fellated her fingers, licking, sucking like little dicks. She loved it when he did this; her only lover who had ever done it. His own fingers replaced hers, their nails grazing her plump, wet labia. She shivered as his touch triggered her deep arousal like electric shocks. Her pussy pulsed in anticipation.

Owen took the hand he had in his mouth and placed it on her full, plump breast. She could do what she liked up there. It immediately started squeezing her nipple.

He had plans for his mouth. He lowered his head and inhaled the musk of her that was assailing his nostrils. His own breath caught in anticipation.

Her face never disappointed. His thick tongue sliced through her labia, pressing deeply into the hot, wet valley and the folds and curves of the smaller lips within. Her shudder and gasp reached his ears as he slid up to her pulsing clit. He smiled and hummed. He then took two fingers to her entrance and pushed inside her twat. No preparation, just straight in. Her back arched.

“Sweet Mother Fucker!” Her orgasm exploded inside, sending waves of pleasure to her pussy, expelling pent-up fluids into her brother/lover’s waiting mouth.

He licked slowly and softly, coaxing the last tremors out of her. Then he sat up some, his handsome face covered in her essence.
“Bastard,” she playfully spat. Then she jumped up, wrapping her arms around him and slamming her lips to his. He fell back onto the bed with a thump. The two kissed, licked, and sucked in passionate frenzy. She cleaned off his chin and cheeks, moaning at her own taste mixed with his sweat and the scent that was only him.

They held each other, him sitting on his heels, her wrapped around him. Her legs crossed over his butt, and her wetness slimed his belly.

“Bastard, huh? Not very nice to call your own brother.”

“When you take that long to make me get off, that’s what you deserve.” She kissed him again, their tongues familiar and perfect. She hugged him, her head on his shoulder, and sighed.

“Kansas City, Naughty? How the hell will we stand it?” His tone was only half teasing. It was a very serious concern for her as well.

“It’s only five hours, the way you drive. Ugh! Can we not think about it and screw like we won’t see each other for months?”

“That is literally thinking about it.”

She blew a raspberry and flopped onto the bed, her legs wide and her need obvious. “Shut up and get inside me. And none of that teasing shit.”

“Yes, Miss Naughty Nina. I aim,” he put the head at her entrance and pushed in, “to pleeease.” His voice trailed off as he slid into the best birth canal and fuck tunnel he had ever been in. He moaned as they coupled in familiar bliss.

“There he is…Moan for me, Mo.”

Owen loved his wife, Sandy. They had a wonderful marriage and a beautiful two-year-old boy. Nina loved her husband, Duke. They had a wonderful marriage and planned to have a family when they settled in Kansas City.

They both loved having sex with each other so much they had purposefully moved to the same town to be close enough to get together without arousing suspicion. Not knowing about the sex, Sandy was supportive of their sibling bond, often saying, “I wish my brother was as nice to me.”

Owen smiled at the ironic statement from his wife as he began a nice in and out of his sister’s sex. ‘If you only knew…’

Nina was on the brink of another orgasm. She was trying to get him to do the thing he always did that he knew she loved. She even gave him the code, “Mo, bro!” but he seemed a million miles away.

The thought of Sandy and her brother fucking surprised Owen so much that he drove in deep and really railed his favorite sex partner. It wasn’t what she wanted but she didn’t refuse it. She wrapped around him and held on for dear life.

He was making his way back to focus when he saw something he never thought he would ever see. Nina looked unhappy, almost disgusted. He stopped suddenly.

“What is it? What’s wrong?”

She looked panicked and pushed his chest. “Get off. Quick! I’m gonna be siiiick!”

He complied with a look between shock and hurt. She raced to the bathroom, and he watched as his naked sister let loose into the toilet. He leapt up and came to offer assistance. He knelt by her, holding her hand and rubbing her back.

She finished, and he offered her toilet paper to wipe off. He flushed, and she sat back against the opposite wall. She could not make eye contact.

“What are you not telling me?”

She closed her eyes, and tears formed. “I’m pregnant.”

He was shocked into open-mouthed silence. She looked at him with genuine fear and concern.

“I was afraid to tell you before I left. I was afraid you would try to convince me to stay. To leave him, blow up our lives.” She covered her face. “Say something…”

“How, um, how long—”

“Just under nine weeks. I’m due in June.” She dropped her hand and took his in a firm grip that asked for strength. “If he does the math, he will know it’s not his. But I don’t think he is clever enough. Mo…” She put his hand on her belly. “It’s yours.”

Owen sat speechless, then broke out in a huge grin that brought laughter and a much-needed hug. “I am so, so happy! We’re having a baby? Fuck yes! I love you, Naughty!”

She sobbed tears of joy. First hurdle handled.

Her queasiness now dissipated, they made love twice more before he had to go.

He grinned the whole way home until he got to their street. Sandy…she could do math.

He came in, and she waved hello. “You take care of her?”

Owen was wide-eyed as he hung up his jacket. “What?”

Sandy looked at him oddly.

“Yeah, it’s all good. I need a shower.”

He blew her a kiss and headed up to the bedroom. He quickly stripped and got under the water, needing to wash away any potential sister smells. 

“Why’re you rushing into a shower?” Sandy asked as she stood at the bathroom door. 

“God, babe, I was so sweaty in the car coming back, and I don’t want to subject my beautiful wife to that stench,” he said, the shower water cascading down and filling his mouth as he spoke.  

Sandy undid her dress and let it fall, and then pulled her bra and panties off. Naked, there seemed only one sensible thing to do. She stepped into the shower with her husband. He looked surprised but then grinned. She took the scrunchie from Owen’s hand and pushed him backwards a little. She squirted gel on the scrunchie and wrapped it around his hard dick. 

Her husband gasped, almost inhaling the shower water, then closed his eyes as his wife worked his shaft. Sex with Sandy was different than sex with Nina, and he loved both varieties. Nina knew he fucked Sandy, of course she did, but Sandy had no clue that her husband was fucking his sister. Owen guessed that she wouldn’t be happy about it. 

Her hand pushed under, squeezing his balls and then pressing at his ass. His sphincter gave way as the scrunchie was pushed inside.

“Holy fuck…,” he wetly breathed.

The course texture gave Owen an erotic tickle. As she washed his hole, his dick jerked in response.  He could wait no longer. He grabbed Sandy and twisted her around, pushing her forwards so that her round butt jutted back. He lined his dick up, slid down her ass crack, and found her hole. He pushed, she gasped, he entered, she squeezed. 

 “Yesss, baby,” she gasped, “yes, fuck me.” 

He obliged, as every good husband should, with a quick, deep filling. He pulled back, almost vacating the premises, the shower water cascading down his chest, along his dick, and then falling from her twat to the shower floor. He pushed in, and water squirted everywhere. The crash of his body against hers was more of a squelch than the usual crack. 

He was reveling in the moment. Two women in one day: one pregnant with his child. His pride and ego swelled.  

He moved faster, pressing harder, the back of his mind reminding him the shower was slippery and that he needed to take care. Deeper he pushed, harder he thrusted. Sandy’s hands braced against the shower wall as her husband fucked her to her peak.

“Oh god, Owen…,” she shouted in ecstasy as she spasmed around his girth.

He answered with his own shout as he released his fourth load of the day, just as thick and deep as the three in his sister.

As Sandy held still and panted her satisfaction, she smiled. She had taken her temperature that morning. Today was her day; she was ovulating. 

NOW

Sandy picked up Owen’s phone and saw the caller ID.  “Hi, Nina,” she said, a smile in her voice as she spoke to her sister-in-law. “How’s things?” 

“Hey Sandy, things are good. Drake is coming back in two weeks. They have given him a month back here, but he is going to miss the birth. I am just glad I won’t be alone.” 

“Oh, that is bad. Such a shame they can’t give him leave.” Sandy said, “But at least he will be back sooner than you thought. And you won’t be alone for long. You’re loving bro is on his way soon.”

Nina’s heart skipped. “Loving,” Was Sandy implying something? Did she know?

Sandy did not let on. “You know I would come to be with you, but travel lately wreaks havoc on my guts. Another nine weeks to go. Shit, I feel nauseous just thinking of travel.” 

At that point, Owen came in from the garden where he had been weeding around the flower beds. His face was smeared with dirt, his fingers stained with soil. He looked questioningly at his wife as she held his phone. 

“It’s Nina,” Sandy said, handing it to him. “I saw the caller ID and answered because she’s so close.”

Nina laughed on the other end and shouted, “Thanks, San. At least someone is looking out for me!” 

Owen shook his head and smiled at his pregnant wife, who was laughing. “Damn, two of you at once. Lucky me.” He took his phone in order to speak to his pregnant sister. Sandy blew him a kiss and headed off to the kitchen. She needed a drink. 

Owen was a little louder than he needed to be to sound somewhat normal. “Hi, Nina, you good?”

Nina poured on the sexy, knowing he would never put her on speaker. “Hi yourself, Moanin’. It’s time.” 

Owen smiled. His sister, pregnant with his baby, was about to drop. “I’ll shower and grab my bag,” he said. “I can be to you by…seven?” 

A week ago, Owen had texted his sister to say that he would be with her, that his wife Sandy had insisted. “Go, be with her. I will be fine here for a few days, I am not due yet, and Mom will always come over and help.” 

Owen had kissed his wife and thanked her, his mind drifting to memories of her Mom, Stephanie. How just a year ago they had fucked, how her sexy mouth had taken his dick, how he had squirted deep in her throat. How she had taken his dick in her; feeling so much like her daughter yet different. Mostly, he thought about how insatiable she had been every time and always shouted, “Give me your seed!”

The affair had lasted a few months, and then Stephanie had hit that age, the age that all women hit, where her desires petered out, and guilt fired up. They never regretted their infidelities; they just acknowledged that it happened, it was fun, and it ended. He never told his sister about Stephanie. In the last five years, he had given three women his seed, and two were having his babies.

Owen went into the kitchen and embraced Sandy. “It’s time. Are you sure that you will be okay of I go?” 

“I shall be fine, my over-protective, loving husband. Now, go and be a brother, hold her hand, she is going to need support with the baby coming early. Drake won’t be home, so she will need someone, and who better than her brother?” She kissed him then made a...