Potential - Book Four - Cover

Potential - Book Four

Copyright© 2024 by EroticScribbler

Chapter 17

Erotica Sex Story: Chapter 17 - A teenage boy's normal struggles growing up with his twin sister, a stepmother, and stepsister are complicated by his porn brain and pantie fetish, or at least that's what he thinks. There might be more to the story. Too bad his best friend's moral compass is broken. NOTE: The whole story has been meticulously reviewed, rewritten, and grammar-checked. 4th book in the series. There will be 5. Plus he wrote Attic Voyeur: The Incest Next Door.

Caution: This Erotica Sex Story contains strong sexual content, including mt/Fa   Fa/ft   Teenagers   Coercion   Consensual   Romantic   BiSexual   Heterosexual   Fiction   School   Incest   Mother   Son   Brother   Sister   Daughter   Group Sex   Anal Sex   Bestiality   Masturbation   Oral Sex  

Evan had driven around aimlessly, hoping Cindy would change her mind while considering his other options. There was that standing invitation to swim at Miss Style’s, or he could go to the creek. Rhina might show up and put on another show for him. That would be a great distraction. There was always Jason’s house, but Evan didn’t think he was ready for that. The only person more immoral than himself would want to talk about sister fu—Evan’s phone chirped, and he got excited.

That’s unusual, Evan thought. The text was from Rebecca and had nothing to do with Deana. “Come to the back gate.” That was very suspicious. He thought about the kiss Rebecca gave him earlier when Deana wasn’t looking. Was the tumbler up to no good? Of course she was; they both had been up to something, but Deana would be there, so Evan had nothing to worry about.

The tumbler had mentioned that bikini she wore while he felt up her ass with Deana standing a few feet away. And it was Rebecca’s plan that had him making out with Deana in the car. The words to an ancient song popped into Evan’s mind, “I run to the edge, I look, I see, I fall.” Oh well, he thought, it’s not like I can do anything for Cindy now, I might as well take my chances. Tumbling, bouncing, and banging had to be better than playing with fire at the ballpark. Mm, maybe Rebecca will do a handstand?

In Rebecca’s driveway, Evan told himself to stop thinking about a threesome. Deana would never let him fuck her best friend and lover, even if the tumbler wanted it.

Evan went around the back, grabbed the top of the privacy fence, and jumped up three times, peeking over. Jackpot, two girls, on towels, wearing tiny bikinis. Their skin glistened under a sheen of slippery lotion. Evan opened the gate carefully, prepared to stop at the slightest squeak. It was silent, so he stepped in and flicked the locking mechanism into place. They seemed to be asleep, so he walked as if the grass underfoot might wake them.

Rebecca was on her back, eyes tightly sealed against the sunlight. Deana was on her stomach. Creepy? Yes, but considering his resume of perversion, Evan stood at the feet of the two girls on the ground in front of him and stared. Rebecca’s bathing suit wasn’t the one she wore during the ass-judging. It wasn’t a bikini at all. Instead of covering, it outlined the parts that were supposed to be hidden. Shoelace-width strings formed triangles around Rebecca’s small, perky tits, squeezing the sun-brightened nipples into the space where material should have been. The yellow strip that pulled tight from hip to hip split into two sides of a triangle that framed Rebecca’s mound and bunched the tumbler’s swollen labia into a pile of delicious flesh. Fuck, what an incredible pussy. Evan wondered why Deana’s girlfriend had told him to come there if she was wearing that.

He shook his head and turned to his sister as if that might stop his dick from growing. Deana’s top was untied, lying under her chest. Fine hairs glistened in the sexy inward curve of her lower back. Deana’s bottoms had lost the fight against her bubble butt, collapsing into the deep groove. Her ass was oiled like she had been cast in a porno about a massage that turns kinky. Evan knelt between the girls and watched Rebecca’s stomach rise and fall. The lines were faint, but he knew how the tumbler’s abs looked when they rippled. He thought about sliding the tip of his finger through the slippery grooves, crisscrossing, then following the line down the center into the hollow of her stomach and up the building hill of her pubic mound. Would he be able to stop where it could still be considered a reasonable way to wake her up, or would his finger plunge between those luscious swells of Sun-reddened labia? Look away, Evan told himself.

Rebecca’s hair was pulled tight on top of her head, showing off her whole face. Evan hadn’t ever taken the time to admire her, at least not since the night they kissed in the basement, but that was years ago. A lot had changed since then. Rebecca wasn’t his sister’s cute, annoying friend anymore. The tumbler’s mouth was full and curled up at the corners. She was prettier than he ever permitted himself to acknowledge. An insane urge to moisten her succulent lips with his tongue pushed Evan closer. He wanted to kiss the girl Deana loved. His hand floated above her belly, flirting with Rebecca’s groin and crotch. The tip of his index finger circled the rim of the shallow belly button. Rebecca murmured. He watched her eyes flutter open, then grow wide with surprise. “Oh, Evan, shoot.” A crooked grin followed.

He said, “You weren’t sleeping.”

She glanced at Deana. “Shh, don’t wake her.”

He whispered, “It’s dangerous wearing something like that outside.”

“Not as dangerous as what you’re doing.”

Evan looked at his hand, resting on her stomach, fingers plucking the string. “Does it bite?”

Rebecca shook her head and said, “No, but I might scream.” Her knee rose and fell out, and her leg leaned against him. He grabbed it and slid his hand down her inner thigh until her tendon pulled tight, steering him inward.

“Why did you tell me to come over?”

“I want a birthday kiss. Dee said it’s okay.”

“Today isn’t your birthday.”

“Mm, but I don’t wanna wait till then.”

Why not, I kissed Alex in front of Gloria, Evan thought, and it wasn’t even Alex’s birthday. He grabbed the back of Rebecca’s neck and lifted her. Like the rest of Rebecca, the girl’s mouth was powerful. She closed her legs on his hand and jerked upward, forcing him to feel how hot and wet she was. The strength packed into such a petite and sensual body amazed him. He freed his tongue from Rebecca’s sucking lips. “Wow, I can see why Deana likes kissing you.”

“That’s not all she likes doing to me,” Rebecca said and shoved Evan, tipping him back onto his butt.

With stealth, fluid motion, the tumbler pounced, spinning around; she dropped her ass on his groin and shoved him down, pinning Evan’s shoulders to the ground. Tossing her would have been easy, but he waited for the approaching mouth to meet his. Damn it, Deana is a lucky girl, he thought, kissing Rebecca again.

When Rebecca’s ass was in his hands, and her crotch was grinding on him, Evan said, “Stop that,” with as much conviction as his hushed voice could convey. “We can’t.” He gestured at Deana.

“You’re right,” Rebecca said and sat up. “Not while she’s sleeping. Let me wake her up first. She wants to watch.”

Evan gulped. “Watch?”

Rebecca turned on her knees until her head was by Deana’s, then lowered her top half. He stared at the girl’s ass. Her butt-hole pointed toward the sky. The dish surrounding the tiny puckered center would probably fill with water if it were raining. He wanted to see her do a naked handstand.

“Dee, wake up,” Rebecca whispered in Deana’s ear. “Wake up, Evan’s gonna fuck me.”

Evan panicked. Deana said something, but he didn’t understand. Rebecca leaned against Deana’s body with her leg stretched out between Deana’s. Rebecca’s muscled thigh pressed between the slick, oiled cushions of his sister’s ass. Deana hunched, lifting her middle against her lover’s leg. “Mm, can I watch?”

Rebecca bit the back of Deana’s neck. “Of course, but you’ll have to turn over.” She pulled the bows at Deana’s hips and helped her turn, leaving the bottoms behind. Rebecca slid on top of Deana.

The sight of his sister’s bald pussy positioned below Rebecca’s while they kissed passionately made it hard for Evan to breathe. Deana’s knees bent, pulled up alongside the tumbler’s body, and squeezed. “Mm, I love how you feel between my legs.”

Now, thinking and breathing were a struggle for Evan. Rebecca humped her pubic bone on Deana’s crotch and asked, “You sure about this?”

This is a thousand times more exciting than watching them make out in front of the house, Evan thought.

Deana nodded. “Mmhm, I love you.”

Evan started to feel left out, jealous, and confused, but Rebecca made like an inchworm and lifted her ass. The plump swells parted, revealing the inflamed inner flesh. Evan stared, trying to make sense of things. Two pussies, ready to be fucked, and he wanted both of them for different reasons. Doing his sister was taboo enough, but if someone watched, that took it to a new level, and if it’s her lover watching—No, that’s too much. Then again, how much different was fucking his sister’s girlfriend in front of her going to be? He was suddenly nervous, as if it were the first time.

Deana lifted her head and peered over Rebecca’s shoulder. “Go ahead, but don’t hurt her.”

Everything changed in a split second. The look in Deana’s eyes, full of love and concern for the girl he was about to fuck, almost brought Evan to tears. “Are you sure?”

Deana nodded and unwrapped her legs from Rebecca’s waist. He rubbed his sister’s feet as they passed, then lowered his shorts. His sister smiled nervously at the raging boner that sprang up. Rebecca tried to look back, but Deana stopped her with a kiss. He leaned over, planted his hands on the ground beside the girls’ heads, and looked down into Deana’s eyes. They were fearful with the same anticipation Evan saw right before he took Deana’s virginity. He hunched and stabbed into the silky ring surrounding Rebecca’s asshole. She drew in a quick, halting breath. Deana glared and reached between their bodies, grabbed his dick, and dragged the head up and down through Rebecca’s hot, lubricating juices. Evan shoved, and Rebecca stiffened. Deana shot him a warning glance and said, “Go easy.”

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