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This is a story about me finding out my sister was intersex. She was two years younger than I was, and I never knew any different. I knew that since she was a baby, she had “medical Issues” but never knew what. All characters are 18 or older
This is a story about me finding out my 18 year old sister was intersex. She was two years younger than I was, and I never knew any different. I knew that since she was a baby, she had “medical Issues” but never knew what. Mom and Dad never mentioned it. They just kept saying it was nothing major and she was fine.

We were at lunch one day in the college student union . Avery came rushing up to where I was sitting, almost in tears. I looked at her as she sat down.

“What's the matter, Sis?” She just shook her head. “Hey now, something has you upset and you need to tell me what it is.” She looked up at me, her eyes swollen and red. Something had happened and she did not want to tell me. She finally relented.

“Bryan Henry put his hand between my legs. He asked me if I was trans.” Her eyes were fearful of the pending reaction from big brother.

I couldn't believe what I was hearing. I felt like killing the little fucker. I got up from the table. Avery grabbed my arm.

“What are you going to do.”

I looked into her eyes. “I'm just gonna talk with him.” That was the truth, or at least what I intended. I didn't want to get caught fighting on school grounds. I made my way to th student center where he and his friends hung out. I entered in, saw their little group and headed their way. Neither Bryan or his friends saw me until it was too late. I grabbed. Bryan by the arm and drug him off to the side.

“What’s this I hear about you thinking my sister is trans?” I barked.

“When I..I.. put my uh...hand between her legs...i...uh..felt a bulge.” I had his shirt bunched up in my fist, under his chin. I raised it quickly bumping up into his jaw.

“First off, my sister is not a trans. If she was, I would know it. Second, if I ever hear of you touching her again without her permission, I will track you down, rip your nuts off and shove them down your throat.” Brian uncontrollably nodded his understanding. “And third, if I hear any rumors going around about Avery, I'll come back and kick your ass because I will know that the information came from you.” I released his shirt, grabbed the front hem, tugging it down to straighten it out for him. “Now, are we clear?” Again, Brian just nodded. “I won't say a word or touch her again.”

“Good. Now have a nice day.” I turned around and walked to my next class.

I didn't see Avery until after she got home from school. I was in my room, sitting at my desk reading my history textbook. A light knock on my door, and Avery poked her head in. I absolutely adored my sister. She had reddish brown hair with green eyes and a turned up nose. Her figure was shapely and woman like, but not overly sexy like a model. Don't get me wrong. If she wasn't cute, assholes like Brian and his thugs wouldn't have been trying to cop a feel off of her. To me, she was beautiful and one of the sweetest, kindest persons I knew.

“Hey bro, whatcha doing?” She said as she strolled over and sat on my bed.

“Reading up on American History.” I boringly replied.

“Listen, I appreciate what you did for me today. Brian came to me fifth hour and apologized.” She paused, looking to see my reaction. “I don't know what you said to him, but he seemed like he was deeply sorry.”

I sat the book down on the desk and turned towards her, leaning forward in my chair. “Listen, Av, I just convinced him that it wouldn't be a good idea for him to touch you or to spread rumors about you. I mean, where does he get off thinking that you're a trans and have a dick.” Avery scrunched up her shoulders and timidly said, “Well, Tim. There's something you ought to know.” I was puzzled by her reply.

“Like what?”

“I do have a dick.” she reluctantly admitted.

I screamed out a resounding “What???”

“I have male testicularization syndrome.” I stared at her with a blank look on my face.

“What does that mean?” I inquired.

“When I was born, I looked female, but genetically I'm a male. I don't have ovaries. Instead, I have two testicles in their place.”

I sat there in silence as I tried to take in and process what she had said. “You're telling me you have a set of nuts, just like me? How come I've never seen them?”

She leaned forward. “No, not a scrotum and nuts like you. Where my ovaries are, I developed testicles. I have a vagina, just like a normal girl.” She stopped, then continued. “But my clit is more like a penis.”

I was astonished at this revelation. My sister has a penis? For several minutes, I sat there, pondering the information. Impatiently, she asked “Aren't you going to say something?”

I didn't know what to say. I sheepishly blurted out “Can I see it?”

Now it was Avery's turn for the blank stare. She couldn't believe I was asking to see her dick. “You want to see it?”

“I know it's weird to ask, but I'd really like to know exactly what you are talking about.” I paused momentarily. “I just threatened to thump a kid because he thought you had a penis. I'd like to know what I'm defending.”

Avery thought about it for a second, then stood up and removed her shirt leaving only her white lace bra. She kicked off her shoes, reached around to unhook and unzip her skirt. She let it fall to her feet. She grabbed the waist band of her panties and bent forward as she pulled them off her hips and down her legs. As she sat back own on the bed, she pulled her hands up in front of her to cover her pubic area. She then reached behind her and unhooked the bra, removing it from her shoulders. My sister was sitting on my bed, stark assed naked. She looked at me with pleading eyes.

“Please don't laugh or make fun of me?”

“Avery, I'd never do that. I love you and I'm your older brother. It's my job to protect you.” With that assurance, she spread her legs apart giving me a full view of her junk.

The first thing I noticed was the smooth skin around her mound. There was not a stitch of hair. I glanced just a little further down and saw her extended clit, poking out about 3 inches like a small penis. Below it, there were a pair of pouty labia. I couldn't help but stare. I moved from my chair down onto my knees and waddled towards her. I placed my hands on her thighs and took a closer look. My right hand slid up to her smooth pubic bone.

“Do you shave?” I asked.

“No. One of the effects is that I have no pubic or armpit hair.” She lifted her arms to show me pits that were smooth as the day she was born. I continued to rub my hand over her smooth skin above her pussy/dick. I slowly moved it down a few inches grabbing onto her cock/clit and began stroking it. Like a real penis, it began to harden. I took my left hand up and played with her outer lips. As I felt around, I noticed she was dry and had no inner lips.

“What's the deal with your vagina?”

She reached down, using her index and middle finger to spread her lips apart. “There is no natural lubrication. Since I was about 8 years old, I've had to use a dialator every night to help keep it open and deepen it so I can have sex.” At first, the dialator was only about 4 inches long, but the one I use now is about ten. It keeps the vagina from closing in on itself.” I nodded, showing I understood.

“So do you play with yourself?” I continued to stroke her cock, which had grown to about six inches long and was stiff as a 2x4.

She placed her hand on mine and helped me jack her off. “If you keep going like this, I will cum. Just like a guy. If you rub the skin at the top of my lips, I can cum from that stimulation too. But jacking off works a lot faster.”

I've always considered myself a heterosexual, never having thought of being with a guy or even touching another man's penis. Yet here I was with my sister, rubbing what can only be described as a fully intact, penis. I leaned forward and licked the head. Avery put her hand on my head and let out a loud moan. I leaned in again and took the head in my mouth. I circled my tongue around the tip. Now both of her hands were on my head pulling me down onto her. I began bobbing up and down as I took her deep into my mouth. The first time I had ever sucked a cock and it was exciting. Each time I went down, I could feel the head hit the back of my throat.

“Oh fuck, Tim!” she exclaimed. “You're gonna make me cum.

I kept sucking and licking her shecock. She pushed her hips up towards my face every time I went down. Within minutes, my nose was pressed against her smooth pelvic bone as she forced my head down and I felt a warm sensation hitting the back of my throat. I had just given my sister her first blowjob. My mouth filled with her cum, I pulled off of her. She leaned forward, placing her mouth on mine and began darting her tongue into my mouth. I opened wide and we shared her spunky goo. It wasn't like mine. Mine kind of had a bland, almost salty taste to it. (Yes, I've tried my own sperm!) Hers was sweet and pleasant tasting. As we pulled back from our kiss, we both swallowed.

“Son of a bitch, Tim! That was fucking hot!”

I just sat there looking at her. “I can't believe I just gave my sister a blowjob.”

Avery laughed. “From what I've heard other girls talking about, I can't believe you let me cum in your mouth.” We both laughed about that. I got up from my knees, pushing her back on the bed and lying down beside her. I laid partially over her chest kissing her soft lips and feeling her B cup tits.

“These feel so real.” I admitted.

“They ought to.” she replied in a sarcastic tone. “They are!”

I continued to massage her ample breasts as I kissed her again. Avery moaned into my mouth while I pinched and played with her nipples. We kept kissing for quite a while. I gently moved my hand down towards her groin and began to play with her lips. I suddenly remembered what she said about no lubrication and reached over to pull a tube of KY out of my nightstand. I put a dab on my finger and stuck it into her love muffin. The skin inside was silky smooth. At the bottom of her tunnel, I felt a small bump. I ran my finger over it several times. By her reaction, I could tell it made jer feel good. She must have been able to tell what I was thinking.

“My prostate.” she confessed. I kept rubbing it and then had an idea. I repositioned myself where I could stick my left finger into her rectum. I gathered a little lube from her vag, then slowly worked my finger in. Her virgin butt hole was tight. Finally working my finger in, I found her prostate from the back door and rubbed it from the front door. Avery let out a long moan. “Ohhhhhh fuck, brother!”

Pre-cum was flowing from her penis. I couldn't let that good stuff go to waste, so I leaned up and took her semi erect cock into my mouth. Avery was feeling so much pleasure. I didn't give a shit about myself. I was having too much fun playing with her. She finally grabbed hold of my hand pushing it away.

“Too much .” she said. “You need to fuck me now. I need something besides that dialator inside of me.”

I grabbed the lube and put more on my rigid rod. I maneuvered into position and slid it in to her awaiting hole. I had no resistance getting into her. The walls of her pussy fit snuggly around my cock. I began pushing in and out slowly. I gradually sped up my strokes. Damn this felt good. 5 hours ago I was threatening to beat a kid up for touching my sister and here I was fucking the shit out of her and sucking her cock. I kept pushing in and out. Avery was lost in a sea of excitement. My cock rubbing on her tiny prostate and stimulating the sensitive fold right below her cock. With in minutes, she cried out as she started shooting cum all over my stomach. I kept thrusting. My balls slapping hard against her ass. The walls of her sex squeezed tight around my invading member. I couldn't take it any longer and came like I'd never came before. For about 30 seconds, my nuts pumped stream after stream of hot semen into her body. I returned to sliding my dick in and out of her until it finally deflated and slipped out on it's own. Avery pushed me over on my back and leaned down and took my manhood into her mouth. She sucked and cleaned every last drop of spunk out of my tool. When she was done, we both got up and got dressed. We laid back down on my bed, holding each other in our arms.

“Tim?” she said quietly.

“Yeah, Av?”

“Do you feel bad about what we just did?” I pulled away a bit to turn and look at her.

“I know we probably shouldn't have, being that we are siblings. But no, I don't feel bad.” She just looked at him, not sure what to think herself. He continued. “Avery, I've had sex with a few girls. But you are the first girl that I would say that I made love to.”

She smiled and laid her head on my chest. “I love you, brother. Well, now I guess I don't have to worry about my first time.” She turned and partially sat up. “Thank you for making it special.” She leaned down and kissed me on the lips. We shared a passionate kiss for several minutes. She returned to laying with her head on my chest. I don't know how long we laid there, but we both fell asleep wrapped in each others arm. Big brother, holding and protecting little sister.

When our parents got home, we were still out. Mom came looking for us. She knocked on my door then opened it to find her two kids cuddled together on my bed. She turned down the hall and gently called for her husband. “John. Come here!”

My dad hollered back from the front room. “What do you want?” as he headed to where she was at.

She held a finger up to her mouth signifying for him to be quiet. She opened the door to my room and pointed towards my bed. John saw the two sibling sprawled out together and he smiled.

“I guess we don't have to worry about her anymore. It looks like big brother is taking care of little sister.” They both smiled and closed my door, heading back towards the kitchen. Oh if they only knew how well I was taking care of her!
1 comments

Tiger_tReport 

2024-05-12 20:23:28
Interesting twist on the normal brother/sister sex theme.

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