Fate
by Rick
Copyright© 2025 by Rick
Erotica Sex Story: A woman discovers her step-brother's affair with married neighbor through his emails, and so the erotica begins...
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa Incest Brother Sister Exhibitionism Masturbation Oral Sex Petting Size .
Matty got up much earlier than usual for a Saturday morning. Slowly, Matty stumbled into the bathroom to wash her face and brush her teeth. As she left the bathroom, she noticed Derrick was in the study on the computer. They were the only ones at home.
“Hey Derrick, where is everyone?” Matty’s voice surprised Derrick; she usually would still be asleep for a few more hours.
Derrick smiled at his younger step-sister. What a beautiful and sexy woman she had grown to become. She was 20, and he was 22, and they had been together as a family for 5 years and known each other for seven. Derrick and Matty had a great relationship; as they had matured, they both had become very close and fond of each other. They had both just returned home for the summer from college in the past week.
“Mom’s out shopping, and your dad is playing golf.” Matty nodded, and Derrick called her to come closer to the computer. “C’mere a second, I want to show you something.” He opened up an e-mail joke that had been forwarded to him from a buddy, and they both had a good laugh. As they were laughing, a new email suddenly flashed on the screen. Derrick was all of a sudden nervous, working the mouse furiously trying to close the mail.
“Who’s that from?”
“Oh ... umm ... it’s ... it’s nothing ... just some spam.” But Matty is very observant and noticed the screen name was JuneRoberts before he was able to close it. June Roberts was married, and she and her family lived about a block away. Matty wondered why she would be emailing Derrick. Derrick was acting very peculiarly, and she could see that Derrick was not going to open it while she was there, so she casually walked out of the room, like nothing was going on. But she didn’t leave; she peeked back into the door to see Derrick eagerly reading the new email. Something was definitely up; she didn’t know what it was, but she was going to find out.
Derrick didn’t leave until later in the afternoon. He told Matty to tell the parents that he wouldn’t be home tonight. She watched him drive away and then ran into the study. She knew Derrick’s password. She had watched him type it in one day months ago when he wanted to show her something on the net. She had never before used it to pry into his personal doings or spy on his emails, but now she had to know what was going on. She just hoped he hadn’t changed the password or deleted the mail.
After a few keystrokes, she was happy that the password still worked. In no time, she was in his mailbox and opened the mail from JuneRoberts. She was shocked at what she read.
Hi Derrick, Welcome home!!! I’ve been looking forward to seeing you again. I think it’s going to be a very hot summer(wink). It seems like Spring Break was such a long time ago. I’ve been wet all week anticipating your return. I really need your big cock again and can’t wait to feel you inside me. I look so forward to touching you and taking you deep down my throat. My husband is taking our kids camping this morning. He won’t be back until noon tomorrow.
I would like it if you could come over and maybe spend the night? Let me know if you can make it. Maybe we could play the teasing teacher/student game again? I’ll go out and get some nice steaks and a bottle of wine, and some new nylons, high heels, and lingerie ... hope to see you!
June
Matty leaned back in the seat and sighed heavily. She had to reread it again to be sure she had just read what she thought she had just read. This was unbelievable. Derrick was fucking June Roberts?!? Matty started scrolling to see if she could find any more emails from JuneRoberts. She scrolled through a couple of months’ worth of emails and finally found another one from June. It was a couple of months old, and she recognized the date as being during spring break. She opened it.
Sorry to see that your break is over so soon. I hope you don’t mind that I took up so much of your time. This past week has been one of the best weeks of my life. God, we had fun, didn’t we? I must admit that I’m already looking forward to seeing you over summer break. Good luck in your studies, and I know your social life will continue to be very active (lucky girls). I know you are leaving this afternoon, but if you get a chance, why don’t you come by? I’ll give you a goodbye blowjob. I’d love to show you once again that I’m “good to the last drop.”
June
Matty scrolled just a bit further up, a couple of days, and saw another message from June. The dates were in ascending order. Matty figured this out and knew this next note preceded the one she had just read.
Last night was absolutely incredible!! This morning, I feel more like a woman than I ever have before in my life. I’ve never had so many orgasms in my life. Not only do you have the biggest and best cock I’ve ever seen, you are also a great lover. After all my orgasms, I thought I’d be drained and tired this morning, but it’s just the opposite. I feel so alive and vibrant, and if you were here right now, I’d fuck and suck you dry!!! Can’t wait till Friday night!!
June
Matty looked for more emails from June, but there were no more. This was unbelievable. What a slut!! And she was ancient; she had to be 40. Matty sat back and thought about things for a minute. She knew that Derrick had always had a way with females. Evidently, he had a big cock to go along with his good looks. Could this be why females always seemed to flock to him? Can a big cock really make a difference?
In the emails, June raved over his cock. How big was he? She wondered. How come she had never had sex as good as June had described? Then Matty noticed something else: she was wet and horny. Matty printed out the emails, not really knowing why, and she wondered if Derrick was over at June’s fucking her at that very moment.
Matty had always had a secret, yet strong crush on Derrick. The emails just made her desires resurface again. She thought back to the times when she would notice him checking her out. She loved to tease him sometimes and relished it when she had his attention. She played with herself until she achieved an orgasm on two different occasions that Saturday afternoon, but she was still horny. Thoughts of Derrick’s large, hard cock kept her juices flowing all night.
The next afternoon, Sunday, the parents asked Derrick to run to the store to get some items to make dinner. Matty told him she would go with him. On the way back home, Matty slowly worked up enough nerve to ask Derrick about his affair. “So, did you have a lot of girlfriends this year?”
“I guess I had my share. Why?”
“Just wondering. Can I ask you something personal?” She didn’t wait for his answer. “How old were you your first time?”
After a brief pause, “14.”
“I wonder why you’ve always had so many girlfriends?”
“I’m not sure. Just lucky, I guess.”
“Yea right, you must have something they like...” Derrick didn’t respond, and he was wondering where Matty was going with this conversation. “ ... and whatever it is, it sure seems to have made quite an impression on June Roberts!” Derrick was floored when he heard her say this.
“What are you talking about?”
“I know your fucking June Roberts, and I know she’s crazy about you.” Derrick became nervous and tense. “Don’t worry, your secret is safe with me, big brother.” Derrick did not ask her how she knew. He figured that she must have noticed the email yesterday and put things together.
“Please don’t tell anyone, especially our parents.”
“I can’t believe you don’t know me better than that.” It was true. Matty and Derrick had become very good friends and could rely on each other. Derrick was a little nervous that someone knew, but at least he knew he could trust Matty.
“Let me just ask you one thing. Why would you want a 40-year-old woman?”
“Well ... she loves sex, probably more than anyone I’ve ever met. And it’s only about sex; neither of us wants a relationship, we are not in love.”
“Then why do you go over there so much?”
“Her husband is terrible in bed, and she’s always horny. She’s willing to try and do just about anything, plus she’s pretty good-looking.” Derrick was glad they were home, and this conversation was over as they finally pulled into the driveway and went inside. He wondered if he had volunteered too much information. But he wanted Matty to understand that it was not an emotional affair.
That night, Matty dreamed about nothing but sex. Tormenting dreams where Derrick was fucking all kinds of females, young and old. He took them all on. They kept coming to him because he could please them, and he pleased every single one of them while Matty watched. She had to watch as he pleased them one right after the other, but in her dream, Matty couldn’t be pleased; it was against the rules.
He would fuck all these women, but because of their relationship, he would not touch Matty. So Derrick fucked all these women with his big, hard cock, and Matty had to watch as they came over and over and over again. She had to listen to their loud moans and screams of ecstasy while she went totally without. Derrick fucked them in many different positions and never grew tired. Occasionally, he would look over to Matty as the woman he would be fucking was crying out in orgasm and ask, “Now do you know why women like me?”
In her dream, she was allowed to rub herself as she watched, but she just could not climax; that was not allowed. She was totally and completely frustrated. Then, right before she awoke, she had a dream that Derrick was fucking June Roberts doggy style. June was talking to him like a slut, telling him how good his cock felt and how much she loved fucking him. June looked at Matty as he slammed his hard cock in and out of her from behind... “too bad you’ll never fuck him ... Oh God he’s got the best cock ... Oh God Yes Derrick Fuck Me...”
June had a loud and explosive orgasm, then turned around and swallowed him deep into her throat. This caused him to explode in her throat and mouth. June had no problem swallowing every bit of his orgasm ... Derrick and June both looked at Matty and smiled after he was finished, and June said... “Good to the last drop.”
Isn’t it strange how your mind can make you think that a dream was real? Matty awoke in that state; she just knew these things had happened. She was out of breath and gasping for air. After a few moments, she came to her senses and she realized she had been dreaming. She was sweating and she noticed her panties were soaking wet; that combined with her sweat had made her damp and cold on the outside, but more than that, on the inside she was on fire.
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