Discovering My Sister Part III: Our secrets

My older half sister and I were in a full on sexual relationship now and it was time to put our cards on the table.

My older sister Nova and I had begun a full on sexual relationship without anyone knowing. She’s 15 years older than I am and had somewhat satisfied my earliest sexual fantasies of being with my mom.

Nova lives in a different state and we rarely saw each other before this started. Now she was finding any reason at all to fly into town. We had started sexting each other periodically and even did some phone sex just to satisfy our infatuation with each other.

It had been only 2 weeks since we last saw each other for mom’s birthday and we had just finished mutually masturbating over video chat when small talk started.

“Anything new little brother?”

“Teresa gets out this weekend.” I explained. Teresa is my twin sister and she had been locked up for a drug possession charge that wasn’t her drugs or her fault.

“I should come home and see her!” She said with excitement. Nova and Teresa has been even more distant than she was with me before we started having secret sex. That Teresa was coming home in 5 days was enough reason for her to fly home again to be with me.

3 days later Nova arrived unannounced at our house. Mom was shocked, explaining she had seen Nova more in the last 3 months than she did in the last 3 years. It was at that point I started asking myself questions about how she was affording these flights.

It was agreed that Nova would sleep in Teresa’s room this time, at least until Teresa was home. We had a nice dinner with mom that night and later everyone had gone to bed. I assumed that at some point Nova would sneak into my room and sure enough, I was right. Coming thru the bathroom that connects our bedrooms she quietly snuck in. She said nothing as she slipped into my bed next to me and we immediately started kissing intensely. She was wearing an old tank top. It barely held her big fake tits. As I said I was expecting her and was already naked under the blankets.

After a few minutes of intense making out she wasted no more time and straddled me. My rock hard cock was throbbing so hard as she grabbed the base and put the tip to her pussy lips and slammed down. Her slit engulfed my entire 10” member and she let out a gasp. She rode hard and fast! Within a minute she sat straight up, one of her tits flopped out of the side of her tank top.

“Say it! Tell me to cum little brother!” She cried out

Blown away at how quickly she was going to cum, and being so unbelievably turned on by it. She needed to hear me tell her to cum! I felt so empowered by it! Then she referred to me as little brother too! I obliged.

“Cum baby! Cum all over my big hard cock!” I said with some authority in my voice.

As she began to cum I felt it as well. I was going to cum! As she was panting and trying to breathe thru an intense orgasm I joined her by cumming with her. It was strong and quick but it was great sex!

When we were done we took turns going to the bathroom and cleaning ourselves up. She went first. While she was gone I wondered why she didn’t make me wear a condom this time. As it was my turn I entered the bathroom and found out why. She was on her period. There wasn’t a lot of blood down there, I think she was probably just wrapping up but there was blood. I made no mention of it as I crawled back into bed with her.

“Oh my god, now that that’s outta the way, we should talk.” She said after a few minutes of silence. “I really don’t know how to say this without it being weird.. I’m getting married.”

I laid there silent and stunned. She began explaining that she had met a guy about a year ago and he was fairly rich (which was how she was affording these trips home) and similar to mom, he was older than her. Intact he’s 53, older than mom by over a year.

“The thing is, we have a very open relationship. He’s away on business trips a lot and I understand he has needs when I’m not there. I also took a huge risk and told him about us.”

“You told someone!” I raised my voice then quieted it as I finished so not to wake up mom.

“He’s ok with it! Honestly, he gets it.” She said

“How does he get it, when neither of us even get it?!”

“I explained to him the situation and that we didn’t really understand why we were involved in a sexual relationship with each other but we just are.” She said.

I sighed and paused for a moment… “Well I guess now is as good a time as any to tell you Teresa and I have been together for the last 8 years.”

“Wait! You two are like together together?!” She asked “Why didn’t you ever tell me this? How have you kept it from mom?” She continued to ask

“Mom knows” I said.

“WHAT?! How long ago?”

Teresa and I again are twins. We shared our mother’s womb and even though we are opposite sex, we have always been inseparable. I’ll get into our relationship in later stories but it goes back to when we were 12.

“The first time we did anything was when we were 12. She caught us not long after that and about 5 or 6 times after. When mom realized she couldn’t keep us apart anymore, she gave in and told us the consequences of what we were doing both mentally and socially but we didn’t stop. I love her. I adore her. I’d do anything for her.” I explained

The discussion went on almost all night as I told her every detail. She felt as if she was just a substitute for Teresa while she was gone but it wasn’t the case.

“You and Teresa are such unbelievably different women that you’re no substitute for her.. you’re more of a sub for mom.” I said

“Do not tell me you and…” she began

“NO! Never! But it doesn’t mean I don’t have fantasies.” I interrupted.

As the sun began to rise, we finally went to sleep. We both slept well past noon and missed mom going to work that morning. When I finally did crawl out of bed I went to the bathroom to pee. Nova was already in the shower. I could see her silhouette in the shower door glass. It was foggy but I saw it.

“That you little brother?” She calls out wiping some fog off the glass to peak thru.

“Mmmhmm” I responded still groggy.

“You gonna join me or not?” She asked as she opened the shower door.

I had figured she wasn’t interested in continuing with this but apparently I was wrong. I wasn’t sure I wanted to either. How was I going to tell Teresa? The mom fantasies would probably work. She knows all about those. That’s how I would justify this is what I thought as I closed the shower door behind me.

No sooner did the door click shut and I had my face buried between my sisters big silicone titties. Grabbing one with each hand and taking in her perfectly round stiff nipples in my mouth. Her hand reaches down and grabs a handful of my dick. If it wasn’t completely hard when she took ahold of it, it was now. It was rock hard and standing straight up. I released her nipples from my mouth and started kissing her neck. My hands reach down and grab the back of her long skinny legs and picked her up. She assisted my cock inside her. As she slid down my cock she screamed out like I had never heard from her. We had the house to ourselves and she was going to let me know what my cock did to her.

She started bouncing in my arms. Her giant wet tits bounced in my face with her and she screamed in my ear.

“Oh fuck yes!!! Oh god your cock is so big!!!” She screamed. Moments later “..say it! Say it! Tell me I can cum now!” She went on.

Knowing we were alone for the first time I used the full authority of my voice this time. “DO IT! Cum for me!” I grunted, echoing thru the bathroom.

She straightened her body best she could in my arms and reached down and pulled my cock out. She started vigorously rubbing her pussy and I felt her spray me. She had squirted all over my cock and stomach. This time it felt like a steady stream as if she was peeing on me. It was so hot watching her feel that good knowing I made it happen.

I let her down on her feet again as she giggled a bit and seemed a bit light headed. She gently pushed me toward the seat in the shower. I sat down. She turned around and bent over. Her beautiful soaking wet, still dripping pussy right in front of me. I didn’t see any blood on my dick or her pussy so I dove in. I started licking up all the left over squirt I could. I never tasted it before and was loving every drop I could get. Nova has such a petite little body. While my tongue licked her wet snatch my eyes we staring right at her tight asshole. I started to rub it with my finger, then a second. I wanted to taste it! I plunged my tongue on her little brown hole pushing as hard as my tongue could push. I broke thru! My tongue was inside her tight ass. She pushed back and my tongue went in a little more. She reached around and pushed my head away and leaned back. Not sure what she wanted me to do I just took a chance and started pressing my cock against her brown star. As the tip made its way in she screamed louder than before. Afraid I hurt her for a second until she began to push down further and further down. I slowly watched my cock disappear into my big sisters ass.

I grabbed each of her hips and began assisting her slow grinds. Each grind brings me closer and closer to cumming. My hands reach around and now are grabbing her big wet tits. I can’t hold it back anymore.

“I’m gonna cum!” I grunt

She pushes as far down as she can and my cock completely disappears inside her tiny hole. She begins small circular grinds keeping my fully inside her the whole time. I unleash a load inside her. A loud grunt comes from my diaphragm as I feel cum pouring out of my tip.

Just as I finish she pulls up. My cock slaps down on my leg and what looked like an entire cup of my cum starts dripping from her asshole. I thought at that moment it couldn’t get any better but then she got on her knees and started sucking the last few drops of cum I had. Teresa and I had done just about everything sexually but she never did that. I had to find a way to convince Teresa to let this continue. I had been with other girls before and Teresa knew about it but would she accept our half sister? I love Teresa with every fiber of my being and every time we’ve ever had sex it always felt like making love. When Nova and I are together, it’s fucking. Sometimes a guy just needs his girl to be a slut that wants cum in all her holes. Nova did that for me.

Thanks for reading, it was a bit longer than I expected. There will be more.

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