Kelly's Diary 008 - My Boyfriend's Mom Joins In - Cover

Kelly's Diary 008 - My Boyfriend's Mom Joins In

Copyright© 2024 by Kelly85

Chapter 2: Mother and Sister

Incest Sex Story: Chapter 2: Mother and Sister - This all happened long ago with my boyfriend and his mom but still ranks as one of the most surreal experiences of my life. Little did I know then how it would influence me later in ways I never imagined. Some people have expressed their doubts as to whether this really happened. Frankly I probably would as well if I was in their shoes. Yet as they say... truth is stranger than fiction.

Caution: This Incest Sex Story contains strong sexual content, including mt/ft   mt/Fa   Consensual   Heterosexual   True Story   Incest   Mother   Son  

Before I paint too bad of a picture of her, Steve’s mom really shouldn’t be blamed completely for being the way she was. Marlene’s no-good cheating husband had dumped her for his young secretary which would sour just about any middle-aged woman on men and sex. The shame is Marlene still worked really hard to keep herself in great shape and looked at least ten years younger than her drivers license stated. No wonder that she was so embittered about men, especially when it came to sexy young girls even if they were just fourteen. Was she thinking I was going to “steal” her son away from her like her husband’s secretary had done with him? I’ll let the psych majors answer that one but you never know what people might be thinking. In my humble opinion there’s a huge difference between your teenage son having sex with his freshman girlfriend and your husband committing adultery with some 20 year-old bimbo at the office but when it comes to a mother’s heart all bets are off and logic doesn’t always apply.

After a bitter divorce Marlene got full custody of Sharon and Steve along with their younger brother Jim. Their selfish father didn’t even contest custody as apparently he didn’t want any kids hanging around to interfere with him and his new harlot. Steve’s mother would sometimes go off on a rant about men and how they want nothing but sex. Just to be safe, as a general rule we never did anything at his house unless his mom was gone. Sharon would be home sometimes but that’s OK with me as she swore to be discreet and always left us alone - or so Steve thought.

As much as he claimed to be able to spot girls that wanted him, Steve could really be clueless at time. Somehow he didn’t seem to know his younger sister had the hots for her big brother. Sharon was always mentioning things like that but we all just assumed she was pulling our legs. It wasn’t until her brother started fucking me that I saw how jealous she was and realized her so-called jokes weren’t jokes at all! As I said, Steve has no idea but I knew that Sharon spied on us having sex whenever she could. Sort of like my dad with one big difference - she did it to get off and could’ve cared less about my safety! As you might imagine I never told Steve about our secret audience but often after Steve had fucked me Sharon and I would sit down together and talk about it. Sometimes we’d get so turned on that we each started masturbating while imagining Steve fucking each of us in an incestuous threesome. OK, I’ll admit THAT one is more than a little weird but any excuse to masturbate with a friend works for me!

Before Sharon I’d never really thought much about incest, probably most likely because I was an only child. Now I found it turned me on to listen to Sharon got on and on about how much she wanted her brother and then to see her masturbating as she called his name ... that was just plain HOT! I’d never met anyone before who wanted to have sex with someone in their own family and it seemed REALLY strange at first to have my friend getting off to thoughts of her own brother. Regardless of how bizarre such thoughts were, I really couldn’t blame her. Heck, if Steve had been MY older brother I probably would’ve felt the same way!

Much to Sharon’s frustration Steve was NOT into her incest fantasy and so far as he was concerned Sharon didn’t exist unless he was trying to get information about me. She’d all but thrown herself at him but the more she flaunted herself the more he pulled away from her. Well, at least one member of the family was normal!

As much as we masturbated together neither Sharon or I even mentioned anything about having sex with each other. Given my infatuation with my boyfriend’s cock I certainly didn’t consider myself a lesbian. Other than some innocent pranks during a sleepover or girls-only party I’ve never even seen two girls doing it for real. Sometimes I wondered what would have happened if either of us had taken the initiative and made a first move. I don’t think Sharon would resisted given the way we kissed at her last slumber party although it didn’t hurt that my mouth had been full of her brother’s cum at the time! While I wasn’t really turned on by the thought of sex with girls I still enjoyed masturbating with my friends - go figure! Then again, I masturbated occasionally with my mom and WE didn’t have sex so maybe it wasn’t that big a deal.

In any case, Steve and I always made sure that before we fooled around at his house that his mom was definitely not going to return before we were done. Just too many potential complications otherwise!

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