Around 1995 my older sister divorced her husband for cheating supposedly. She wanted to move back into our town near my mother and our family, where there happened to be plenty of jobs.

I volunteered to help my sister move as her husband disappeared after their divorce, and I wasn’t doing much at the time. So I went to her town in a neighbouring state.

It took a couple of days to pack everything up, and we left the following morning for her new home.

The unpacking took a lot longer than the packing and I had to stick around until done; which was a few days. I stayed at my mom’s house the first night, but the second night I stayed at my sister’s new house and that was when all the fun started.

My sister’s kids had gone to stay with my brother and his wife so they would be out of the way being young and all. My brother had kids the same ages as my sister’s kids, as well as a pool so it worked out well.

We were just sitting around drinking some beers unpacking the smaller boxes.

I had just hooked the TV and VCR up and was unpacking the boxes marked for the entertainment centre while my sister was in her new bedroom unpacking her bedding and such. I opened one box to find her collection of video tapes, and as I arranged them on the shelves, I found a couple that didn’t have labels. I figured I would take a look at what they had on them to help me put them in their place. So I put one of the tapes in and started it playing and was surprised to find out that it was a sex tape featuring my sister and her ex. She was giving him what looked like the greatest blowjob in his life.

I have to admit that I went through a phase in my early puberty when I perved on my sister quite a bit. We were teens and she was very hot looking and the closest female that was careless enough with her dressing that I got quite a few glimpses of her maturing body.

Thinking my sister would be in her bedroom for a while, and getting quite horny watching her amazing oral skills, I took my cock out and started stroking it. I figured I would hear her coming down the hall, and could stop the tape and put my cock away without any problem. I was wrong. I was watching the tape and stroking my cock when I glanced to the side into the hallway and was startled to see my sister standing there. Turning all kinds of red from embarrassment, I quickly put my cock back in my shorts and turned the tape off.

Susan just laughed a little and surprised me when she said “That tape is my favourite, that’s why I kept it. Keep it playing.”

“Are you sure?”

“Sure, why not?”

“Alright, it’s your tape, so if you say so...” I said as I pushed play again on the remote.

She took a seat on the couch next to me then she told me to go back to what I was doing before she walked in.

“I remember you used to perv on me when we were young. It’s my turn.” She said, “I would like to watch you stroke that nice cock of yours.”

I hate to be a bad sport, so I took my cock back out and started stroking it again.

“Do you like the scene?” Susan asked.

“Honestly sis, I’ve never seen anybody get into sucking cock like that. None of the porn tapes that I rented ever had something so good.”

“Would you like to see my skills first hand?” She asked with a stilted smile on her lovely mouth.

All I could do was swallow audibly and nod my head vigorously.

Susan then simply reached over and grabbed my cock and started stroking it. She scooted closer and smiled at me as she lowered her head to my crotch and started to lick the head of my cock. Then in one motion she took all of my cock into her mouth and throat, sucking so hard I thought all the blood in my body would end up in my cock. She continued to suck, switching to just the head and stroking the rest of my cock with her hand.

Susan stopped this amazing blowjob for few seconds, threw a cushion on the floor in front of me, then moved to between my legs on her knees and resumed the most toe-curling blowjob I had ever experienced.

When she covered my balls with her hands and gave them a gentle massage, I lost all control and started shooting in Susan’s mouth. I was surprised when instead of pulling off or something, Susan did the unthinkable and buried my cock into her mouth and down her throat until her lips were pressed hard into my pubic bone. I shot rope after rope of jizm down my sister’s accommodating throat until there was nothing left.

When my cock stopped spasming and all pulses ceased, Susan pulled her head slowly from my cock while using her fingers to milk the last of my cum into her mouth as it retreated. She gave me a hard suck to make sure she got all of it, and then kissed the head and sat back on her haunches.

“So, little brother, what did you think?”

“What did I think? I didn’t think at all. Your skills are amazing. I’ve never felt anything like this before. You overwhelmed all my senses. My body is still tingling. Where on earth did you learn to do this?”

“College of course, and Charlie (her ex) was a mean man and pushed me hard to please him, which pushed my skill level quite a bit.”

“Well, you’re amazing.”

“Thank you.”

“Want me to return the favour?”

“You don’t really have to. I get off on giving head. I learned to love a hard cock down my throat.”

I was taken aback. I had hoped that by returning the favour I would secure more sexual encounters and more mind-blowing blowjobs in the future.

Susan must have seen the disappointment on my face. She laughed and continued, “But, if you really want to, sure!”

So I quickly reached down and grabbed the hem of the summer dress that she wore and pulled it up and off her head as she raised her arms to let me do that.

I pulled her up by the arms and as she stood, I quickly pulled down the utilitarian panties she wore as she took off her bra herself.

Susan’s pussy was shaved completely and looked really nice. She didn’t have any inner lips protruding out, it was the first ‘innie’ pussy that I’ve ever seen.

Her pussy was glistening with her juices by then, and when I passed my fingers between her massive outer labia, Susan’s legs seemed to buckle and held herself up by holding onto my shoulders.

“Oh, no man has touched me down there since I caught that asshole fondling Katy’s budding tits. I miss this so much.”

Katy was Susan’s daughter. Now I understood why she divorced him and sent him completely away, so that she would protect her daughter from her own father.

“Let’s go to the bedroom, we’ll be more comfortable and I’ll have more room to work.”

But Susan didn’t move. She just stood there as I caressed her inner lips.

I realized that she simply couldn’t move for as long as I had my fingers between her lips. So I stood up, and went around her while maintaining contact with her pussy. I hugged her with my other hand and started walking her to the bedroom. She could barely move her legs, so I shuffled her in front of me. By the time we got to the bed and right before I pushed her onto it, Susan shuddered hard and trembled and had a very strong orgasm shoving her ass against my now hard cock.

After her own spasms stopped, Susan slumped in my arms as every muscle in her body seemed to relax. So I pushed her onto the bed where she lay on her front, unmoving.

“Do you always cum so quickly?” I asked.

She mumbled something that I didn’t understand.

“What?”

Susan turned her head, took a couple of deep breaths and said, “Not always, but always after having a cock down my throat. It seems to trigger a very strong orgasm in me.”

“So, about returning the favour, I’m not sure what I can do more than this.”

“Oh, don’t worry, I have a very good proposition for you.”

“Oh yeah?”

Gathering her energy, Susan got up and crawled up to the head of the bed and then collapsed, gathered more energy and then turned onto her back.

“Come here.” She instructed me.

I clambered onto the bed and kneeled next to her, waiting further instructions.

Spreading her legs, she said, “The best thing you can do for me is a 69. Eat my pussy while you fuck my face.”

“Huh?” I hadn’t done that before and never even seen it done. So I wasn’t sure what to do.

“Here, come on top of me and put your face over my pussy.”

I twisted sideways to reach her pussy with my mouth, but Susan grabbed my thigh and pulled it over her, putting my knee next to her face, “Like this.”

I was now on all four over my sister with my face over her pussy.

“Ok, now you can lick my pussy.”

So I bent down my head and took a tentative lick between her lips. She tasted great. No stubble on her prominent outer lips.

I felt Susan moving her hands between my legs and felt her pulling my cock down. I relaxed my hips a little, but she pulled down harder so I spread my knees, lowering my ass.

I felt the tip of my cock being engulfed in my sister’s mouth, and felt her sucking hard.

Not to be outdone, I pulled Susan’s legs back and put them under my arms spreading her to the max and dived into her pussy with my nose and lips and tongue.

Taking few swipes with my tongue across her inner engorged lips and her clit, I felt Susan groan around my cock. So I started licking enthusiastically trying to extract another orgasm from my horny sister.

As I did, I felt Susan’s hands reach around my hips and pull my ass down.

I let her pull me down and felt my cock move deeper into her throat.

She kept pulling until my pubic bone rested against her face. My cock was completely embedded in my sister’s mouth and down her throat.

I returned the action by sticking my tongue as deep as it could reach into her cunt and even my nose was touching her asshole. No, it didn’t smell bad at all. It was clean.

Then Susan pushed up on my hips to pull my cock out of her throat. She pushed enough that my cock left her mouth completely.

“You’re supposed to fuck my throat, don’t just leave it in there. Move your ass, you lazy bum.” My sister instructed pulling my cock back into her mouth.

So I did.

Susan clearly got off on getting throat fucked. So all I could do was oblige her.

I pushed down on her thighs with my arms enough to pull her ass off the bed a little, spreading her pussy obscenely, and exposing all of it so that I can reach every nook and cranny with my tongue, meanwhile I started moving my hips as she wished.

I fucked Susan’s mouth as I would fuck a pussy. I pounded it mercilessly. I shoved my cock in as far as it could go. I never ever imagined that any woman would be able to withstand such a thing, but here I was, my own sister getting off on hard face-fucking. I don’t know how she could even breathe, but I always tried to give her room to do so by pulling out of her throat occasionally.

Not even two minutes of face-fucking and pussy licking and I felt Susan’s hands pulling hard on to my ass keeping me embedded as deep as possible in her throat, while her own crotch started hammering my face as she went through a hard orgasm. She angled her hips in a way that shoved my chin into her pussy. I stiffened my neck enough to allow her to use my chin as a cock, stubble and all.

I couldn’t believe the amount of force that Susan was exerting herself to keep my cock and my chin embedded into two orifices of her own body. It was mind-blowing to say the least. All with my own flesh and blood sister!

Her orgasm lasted a long time. I thought she must be suffocating. She kept my cock down her throat way longer than I would ever dare. She must have been able to breathe somehow. Finally, she relaxed her hips and they dropped down to the bed, and she pushed a little on my hips signalling to me to pull out.

I did, all the way.

“Holy shit. That was the strongest orgasm I ever had!”

“Are you OK? I thought you were suffocating for sure.”

“I almost did. But I couldn’t stop. While your cock was in my throat, my orgasm wouldn’t stop. I had to stop when I felt myself fading away.”

Susan was breathing very hard.

“It’s good that you weren’t cuming at the same time. That would have suffocated me for sure.”

“So, how shall we continue?” Susan asked after she seemed to have recovered enough, “Wanna finish in my throat or do you want to fuck something else?”

“I don’t mind fucking your pussy. I think your throat needs a break.”

“True, you fucked hard enough, I think my lips are bruised.”

As I lifted my head to move around, my heart almost stopped. We weren’t alone in the house!

Right in the hallway, outside of the bedroom’s open door, stood a figure that I didn’t expect to see there.

Our own mother was standing right outside of the bedroom door looking at us with her mouth open. I first thought it was shock. But then, as I took in more details, I noticed that my mother’s hand was under her skirt.

My own mother was masturbating as she watched me and my sister fuck in the most depraved way.

As I looked at my mother, her eyes closed and she started trembling and her knees bent inward as she squeezed her thighs together. I could see tremors going through her body. I moved from over my sister’s face but before she moved and saw what I saw, I reached with my hand and put it on her mouth to stop any involuntary noises from coming out of her mouth.

Her eyes questioned my actions and I simply put my finger on my own lips signalling for her to stay quiet and then pointed at mom.

Susan lifted her head and followed my pointing finger. As soon as her eyes landed on mom, her own hand came up and clamped over mine on her own mouth as if to stifle even more noise that may escape her lips.

As we watched our mother silently, our mother’s knees buckled and she collapsed and kneeled on the ground as her orgasm ripped through her. She leaned on her left hand on the ground while her right remained hidden in her crotch.

My sister’s eyes moved from mom to my eyes and back to mom repeatedly, as if she was gauging my reaction. I did the same too. Our eyes showed the same astonishment at this turn of events. One would have expected mom to go crazy and beat the shit out of us for engaging in such inappropriate behaviour. But not mom. Mom masturbated instead!

While mom still had her eyes closed, I pushed my sister towards the end of the bed facing the door where mom was, and had her lie prone on her belly.

As she moved, Susan kept her eyes on mom as I did.

Once she was in position, I straddled the top of her legs and shoved my cock into her dripping cunt and started fucking her slowly as we waited for mom to recover and look at us.

I don’t know whether mom took that long to recuperate from her orgasm for real, or she kept her head lowered thinking, or she knew that we were looking at her and she didn’t want to meet our gazes.

I took my time slowly sawing my painfully hard cock in and out of my sister’s snug pussy as we both waited for mom to look up.

Finally she looked up and saw us looking back at her.

A tired smile painted itself on her face as she crawled on all four into the room and closer to us.

“Hi Mom.” I started.

“Yeah, hi.” Continued Susan.