Bonding Crystals

Ben and Jen Evans had just graduated high school last week and happily enjoyed their summer vacation before going to college in the fall.

They were fraternal twin siblings who were very close and considered each other as not only twin siblings but also as best friends.

Today was both of their 18th birthdays. Both were white, tall, blonde, and athletic. Ben was muscular, about 5'10", and his sister Jen was slim, just a bit shorter, at 5'8" with DD cups. Jen was just older by 5 minutes.

Being the forgetful one, Ben forgot to get his sister a gift, so he went to the local flea market, hoping to find something interesting.

He came upon a mysterious shop owner and felt very weirdly drawn to her. He couldn't explain it, but he just had to visit her booth.

"Welcome," the shop owner said, "What can I get for you?"

The shop owner was an elderly woman looking to be about her 60s, with gray hair and wrinkles, and wearing a lot of jewelry and loose garments.

Ben was inquisitive and said, "I'm looking for a birthday gift for my sister. "We're fraternal twins, and today is our 18th birthday. I'm looking for something special that she will like."

The shop owner smirked and pulled out two necklaces with crystals that looked like they were both part of one crystal broken in half. Both crystals looked symmetrical and enchanting.

She explained, "These crystals on the necklaces are bonding crystals. They are two identical halves of one crystal that was shattered. Legend has it that the crystals were enchanted and that when 2 people both have half of them, they will share a bond for life. The magic is what gives them their glow."

Ben's eyes had been drawn to them like magic, and they started to glow. In the back of his mind, he could feel a sensation, as if something strange was going on, but he couldn't put his finger on it. He couldn't explain why he had to have them. He didn't believe in magic and thought that the shopkeeper was just putting on a sales gimmick.

"How much for the necklaces?" Ben asked,

The shop owner replied, "Since it's your 18th birthday today and it's for your twin sister, I'll be nice and give them to you at the house. I like repeat business."

Ben couldn't believe it. Having just graduated high school, neither he nor his sister had jobs yet and were getting ready to go off to college in the fall so getting a free birthday gift was pretty awesome. He took the necklaces, and they glowed in his hand.

The shopkeeper boxed them up and he went home.

Later that night, Ben and Jen exchanged gifts on their birthday.

Jen said, "I know how much you like working out, and I see your shoes were getting a bit worn, so I got you some new running shoes."

Ben liked his present a lot and he needed to buy some new shoes soon anyway.

Ben then gave his gift to Jen. "I got us matching necklaces," Ben said. The shopkeeper said the crystals were magic and that when two people wear them, they will be bonded forever."

Jen laughed "We are twin siblings and best friends. I don't think we could be any closer!"

Ben argued, "Well, we are both going off to college after summer break, and since we have different majors, I'm not sure how often we will see each other, so we should enjoy what time we have with each other this summer. I thought it would be nice."

They both laughed and shared a hug. The necklace started to glow again. Little did the siblings know just how close their bond was going to become.

They ate some cake, received presents and a hug from their parents, played board games together, watched a movie, decided to go to the beach together tomorrow, and went to bed.

As they slept, however, both of their necklaces glowed, and both of them had the most unnatural dream...

Jen dreamt of her brother. In her dreams, they embraced, kissed, and touched each other. A very faint voice reached out to Jen.

"You love your brother."

"You are attracted to your brother."

"You are in love with your brother."

"You are extremely sexually attracted to your brother."

"You are turned on by incest."

"You think incest is so hot, especially between siblings."

"You think incest is so hot, especially between twins."

"You want to have sex with your brother."

Jen didn't know where these thoughts came from as she slept, and the necklace glowed. Ben was experiencing the same thing in the next room over.

"You love your sister."

"You are attracted to your sister."

"You are in love with your sister."

"You are extremely sexually attracted to your sister."

"You are turned on by incest."

"You think incest is so hot, especially between siblings."

"You think incest is so hot, especially between twins."

"You want to have sex with your sister."

Neither siblings could resist these thoughts while they slept. It was like the thoughts were drilled into them, and they couldn't think of anything else.

When they both awoke the next morning, they began to see each other in a different light.

They both woke up and remembered to go to the beach after breakfast. While they both ate their breakfast, neither could keep their eyes off each other. It was like they were both looking at each other for the first time.

When they got to the beach, Ben took off his shirt and just wore a very slim red Speedo, and Jen wore a very revealing black lace bikini.

Both necklaces grew, and the perverse thought was again drilled into their heads against their will as they lay on the sand sun-tanning. The look of Ben seeing Jen in a bikini and Jen seeing Ben in a speedo really got both of their libidos and their imaginations going.

"Your brother looks so sexy."

"You are very attracted to your brother."

"You want to have sex with your brother."

"You love incest."

"Your sister looks so sexy."

"You are very attracted to your sister."

"You want to have sex with your sister."

"You love incest."

They couldn't shake the feeling. As they both entered the water, they couldn't keep their hands off each other, holding hands and rubbing each other. They both felt weird being out in public and went home.

Jen thought, "Why am I having these feelings? He's my brother, he's my twin, he's my best friend. Why do I suddenly want him?" She got so wet thinking about her brother and imagined what he must look like naked.

The same thought plagued Ben as well before he went to bed. They both masturbated vigorously thinking about each other.

Jen went to sleep with the last thought on her mind thinking she needed to fuck her brother.

The same thoughts plagued Ben as well, as the crystals glowed and their powers were working.

The next day, they spent time together going to the gym, biking, talking about their day, and enjoying their summer.

During their workout, they couldn't keep their eyes away from each other, and the exercise at the gym was getting them both hot. They would've acted on their urges if they weren't in public.

As soon as they got home, they both masturbated while thinking about each other. They both knew it was wrong but couldn't help it. When they went to bed the next day, again, the necklace kept pushing the thoughts into their minds

"Watching your brother work up a sweat was hot."

"Watching him work out makes you horny."

"Masturbate while thinking about your brother."

The same thoughts were being pushed into Ben's mind as well. He couldn't stop watching his sister work out, and he felt so horny watching her.

Just like she was horny watching him work out. Neither of them could shake the feeling, and they both had a hard time working out because they couldn't take their eyes off each other.

The whole day was a day of nerves for both of them. As soon as either of them had any free time,

Jen masturbated thinking of Ben, and Ben masturbated thinking of Jen.

Initially, they both felt a bit of shame, but then their necklaces glowed and the shame went away, replaced with bliss and lust.

All thoughts of morality disappeared. Jen was rubbing her clit, picturing herself having sex with Ben, his cock thrusting inside her, she wanted him so badly.

Meanwhile in the other bedroom, Ben was stroking his cock, picturing himself with Jen, her pussy devouring his cock with its warmth.

They both had a thunderous orgasm, thinking about the other. Neither of them felt any shame in it anymore. In fact, unbeknownst to each other, they both loved it and wanted their fantasy of incestuous sex to become real.

The next day, it was business as usual, just hanging out around the house

Later that night as they were going to bed, Jen heard a knock at the door. She pulled her hand away from her wet crotch, and her fingers were now soaked thinking about her brother. She wiped her hand with a tissue and said, "Come in."

Ben entered, and Jen's eyes suddenly flared up with lust. One look at her brother, and she lost her words. Ben also looked at his sister and started to stammer at first.

"I just wanted to talk to you. Now that we are 18 and going off to college in a few weeks, ever since I gave you that necklace, I have been feeling different, like I will miss being under the same roof as you."

Both necklaces started to glow again.

Jen said, " I know what you mean. Since I broke up with my ex, who shall not be named, I've only been focused on school. After school ended, you and Dad are the only men in my life, and you are my only friend."

When we go to college in the fall, it will just be the two of us," she smiled at that last part.

Ben said, "Well maybe you just haven't met the right guy yet. Are you still a virgin?". This made Jen pause for a moment, but then she replied, "I am; how about you?"

Ben wasn't expecting his sister to answer so quickly or casually, or to ask him the question back. Ben then replied "Me too. If you did meet another guy, would you want someone older or younger?"

The crystals kept glowing, and Jen just got the urge to respond, "About the same age, how about you?"

Ben took a deep breath, a look of surprise on his face. He turned quickly back to his twin sister, looked down at the bed, then back at his sister.

Ben inched a little bit closer to his sister. "So, IF you were to lose your virginity, would you want it to be somebody older or younger?"

Jen bit her lip, "About the same age. How about you?"

"Same age also." Ben looked at his sister's face, wondering what was going through her mind.

They both paused and smiled, afraid to make eye contact. Instead, they looked up and made eye contact, noticing each other's glowing necklaces but paying no attention.

Jen took her turn probing for information from her brother, whom she suddenly felt eager around, "

Would you want somebody experienced or somebody new?

Ben thought about it, "Uhm mm, somebody new to it all, like me. I guess." He hadn't thought of what it would be like to have sex with someone more experienced. He wanted someone like him. A virgin, to lose their virginity to each other together.

Jen quickly replied, "Me too.", very eagerly.

They both smiled shyly again, glancing at each other and looking away, both afraid to show their arousal.

Ben went first and took a chance, running his fingers along his sister's silky thigh, "And somebody I know well...."

Jen was breathing heavily, letting her fingers play with her brothers flirtatiously. "Yeah, me too."

They were both now so close that their knees touched, staring into each other's eyes.

Ben pushed one more time, "And, if I liked it, somebody I could do it with all the time."

They were both practically mirror images of each other, both leaning in very close, almost kissing.

Jen barely noticed her brother's erection as they flirted with each other. Jen mimicked and mirrored her twin brother subconsciously, "Yeah all the time..."

The necklaces were shining bright, and they both started to kiss each other. First, it was a soft, romantic kiss, and then afterwards, it was a longer kiss with the tongue.

Then they became almost animalistic lost in their lust, and neither of them said a word.

Jen took off Ben's shirt, and Ben took off Jen's. He saw her breasts for the first time since they were little and started suckling them. Jen moaned and they both took off their pants.

The time for foreplay was over, and they both knew it. Ben was so hard Jen touched his manhood for the first time, while Ben did the same with Jen, and Jen was so wet.

They were both seeing each other fully naked for the first time since they were small children growing up. They were fully unclothed except for both of their bonding crystals hanging from their necklaces.

Jen broke the kiss long enough for her brother to comment, "I can't believe we're doing this! We're twins! We're siblings! This is incest!"

Ben was the first to speak after they were both fully nude " Tell me you want this."

As their necklaces kept glowing, Jen then smiled and replied " I want it, put it in me. Don't worry, I'm on birth control."

Ben got on top of Jen and inserted himself into his twin sister, his lover, and Jen felt her brother enter her for the first time, both of them happy that they were losing their virginity to each other. They kissed again.

This time much more passionately. They were both fully nude now, only except for the necklace and Ben was pounding his sister-lover hard going into a missionary position.

She loved every moment. Then they decided to switch positions, and she wanted to ride him and go on top of him, her brother-lover. It was ecstatic. It was incredible. It was incestuous love. She was so ecstatic.

Jen was so happy being on top of her brother, riding his cock. Both of their rational thoughts were gone and they were fucking each other on instinct. It was so passionate.

Then they switched to a missionary position again where Ben was on top of Jen.

They were going at it and he was pounding his sister over and over. They were both in eternal bliss as they both lost their virginity and crossed the line into taboo.

He was in his twin sister-lover's pussy. She was taking her twin brother-lover's cock inside her... and they couldn't be happier. The necklace made it so.

Jen said, "You're getting me so hot, bro. We just can't let Mom and Dad know about us."

Ben licked his sister's nipples and smiled, "know what? That their twin children are doing naughty things with each other?"

Jen went crazy as Ben started to pick up his speed. "You know, they can't know what we're doing... You like that?"

After a while, Jen then came and had a wonderful eruption of an orgasm but tried to keep quiet. Her first orgasm was while having sex and kissing her virginity, and it was with her twin brother of all people. she should feel ashamed but she loved it so much.

Ben loved it just as much as Jen did. This was perfect, this was heaven, this was just right. Jen needed her brother's dick inside her pussy, and Ben needed his sister's pussy around his dick.

They both kept on thrusting on and on relentlessly. Both of them love the feeling of losing their virginity to the other. It was so great.

Ben then said, "I'm going to cum!" Jen replied, "Don't worry, I'm on the pill. Come inside me, bro! Come in my pussy! Oh Yeah, Fuck your sister! I love it!"

They both had a thunderous orgasm. Jen could feel her brother erupting his seed inside of her and it felt glorious. They both fell asleep, and the necklace stopped glowing, having done its job. They had broken the taboo of incest and had fallen into sweet bliss.

The necklaces just kept glowing and they were both so happy together. Before falling asleep, they looked into each other's eyes, and at the same time, they both said "I love you", and shared a good night kiss before falling asleep.

Author's note: This is my first story, and I hope that you have enjoyed it. I am open to constructive criticism, and if it is well-received, I may make it a three-part story.