To say that my relationship with my sister Annie had changed since things turned sexual wouldn’t really be telling the whole story.

Somehow, we managed to remain as purely brother and sister by day. When it came to anything beyond that, we almost had our own coded language that was equal parts verbal and conveyed with a glance.

We could eat dinner at the table like regular siblings. We could joke around with Mom and with our friends. We could even just sit around and watch TV without things feeling weird.

In the daylight we really didn’t discuss what our relationship was like when no one was around. It was like THAT would be weird.

Mom didn’t seem to notice anything. If she did, she showed no signs of awareness. Annie and I were always friends despite being siblings. So our natural camaraderie didn’t feel strange or so I suppose.

After dinner, Mom would shut down pretty early since her workday started early. She was normally at work by 7AM so she got up while it was dark and was in bed sometimes around 9 or 9:30PM.

Annie and I would watch some TV downstairs and have a snack. Sometimes we might even make a cocktail. Liquor was never really taboo in our house so we didn’t have to sneak around like some of my friends did.

As our physical relationship progressed, we began to form routines.

We’d reach a point in the evening when I would casually say, “I’m going to grab a quick shower and then head up.” Annie would say, “OK cool. I think I’m about ready myself.” That was all it took.

I would take my shower and towel off my hair. I slipped on my bathrobe and went into my bedroom that was tucked away in the “L” of our downstairs. Once I was there, I would turn on some music or the TV and climb into bed.

Within a few minutes I would hear the doorknob turning. I could tell it was Annie just by the sound of her walking down the hallway.

Annie would quietly latch my door. The knob had a lock on it also. I would sometimes hear Annie twist that lock or if she didn’t, we would address that later.

She would move down to the foot of my bed and slide up on the right side of the mattress behind me while I lay on my left side.

Sometimes Annie would immediately turn to her left side and drape her knee over my hip. Other times I could feel her move flat against my tailbone. The touch of her mound directly against my ass would instantly make me hard.

Annie usually didn’t change into a nightgown or a night shirt. She’d still be in her jeans and a t-shirt or shorts. Meanwhile, I was only wearing my bathrobe. I could slide the material up past my hip bone or past my tailbone and I would feel my big sister start to grind her pussy against me.

This was still my big sister and maybe a small part of me was hesitant. That may sound peculiar. Still, I let Annie determine how quickly we would move and which direction we might take.

I slid my hand behind me and could feel the heat of Annie’s bare stomach under her t-shirt. Her tight jeans were still buttoned and zipped up. I had tricks that I would use to determine how much Annie wanted. When I could feel her grinding harder against my tailbone, I would roll onto my stomach. It was like I was making her chase me.

Annie would then follow me and sometimes climb onto my back. She’d continue to grind her mound against my ass. Occasionally I would stick my ass up so that she’d hit my tailbone with more precision. I could hear her gasp when she did. She’d hover over that spot and rotate her hips. I knew she was tantalizing her clit against me.

Slowly I would move onto my knees. Annie would be behind me in a pseudo-doggy style position. I would reach between my legs and undo the button on her jeans and slide the zipper down. This was my signal to Annie that we were stepping it up.

I would hook my fingers into the front of her panties. She would continue to pump her pussy towards me but now making contact with my knuckles and not my tailbone.

I would ease my middle finger straight out. Eventually Annie would adjust her position so that my middle finger was focused directly between her pussy lips. She’d be extremely wet already. My finger would slide into her with ease. After several thrusts, I would introduce a second finger. Annie’s thighs would open wider to welcome the additional friction.

Once I could sense that my sister was ready, I would withdraw my fingers from her pussy and slide out from underneath her.

“Annie, take everything off,” I would say.

Without a word, Annie would comply with my request. Depending on where we were in the throws of everything, she might lay down on her stomach.

I would slide out of bed and move to the foot of the bed. I would then start fingering Annie while standing over her. I would tease her clit and hole while standing over her watching her body twitch and listening to her gasp. Sometimes I would hold my breath and listen to the sounds of the house to make sure I didn’t hear Mom coming downstairs.

I would move both my hands to Annie’s hips. It didn’t take much for me to pull her to her knees while I stood directly behind her. Once on her knees, I would finger Annie a bit longer. When I could feel her hips chasing my fingers as they withdrew from her pussy, I knew she was ready.

Then I would take my rock hard cock into my left hand while she chased my fingers on the right. A quick switch would position the head of my cock in line with her pussy hole.

“Open wider,” I would whisper.

Annie would open her legs more and tilt her asshole towards the ceiling while arching her back.

She knew it was coming.

I would rub the tip of my cock against her ass cheek and get any pre-cum off the tip. I so wanted to penetrate her dry. Not only did I want to make sure I didn’t get her pregnant, I also loved that transition into her slick pussy when we first started to fuck.

Annie would gasp as my cock entered her. I’d move my hands to her hips. First, I would pull them gently and fuck her slowly. Then I could feel Annie chasing it again. I didn’t need to pull her and go deeper. She was making that all happen.

While enjoying the visual of my cock slipping in and out of Annie’s pussy, I’d stand up straight for as long as I could. Watching her legs spread apart and welcoming my cock inside was amazing. Feeling her ass slamming gently and then more aggressively against my thighs told me that we were definitely in this.

Once we had a good rhythm down, I could lean forward and reach underneath Annie and play with those magnificent tits. Annie’s nipples were harder and more sensitive when she was fucking me. I think she also knew that feeling and watching them made me harder. As a reward for letting me have them, I could switch a hand down and tease her clit while I fucked her from behind. I loved how that made her jump and gasp. I didn’t want her to cum too fast though. Making this last was our shared mission.

I’m only human though. Annie’s body was a slice of heaven. I was also fucking my big sister. When you add all of that up I could only hang on for so long. I think the experience maybe helped my endurance overall. I wasn’t wearing a condom so tricking my brain and short of thinking of something to keep myself from fixating too much on the fact that this was actually happening, I had to do anything possible to avoid cumming at all let alone too quickly.

I really wanted to watch those tits. I wanted to get underneath and suck on them. That wasn’t always realistic. If we got into a zone or if it got too late and close to Mom’s wakeup time, we had to move quickly.

On this night I told Annie, “Turn over so I can see you.”

Annie was too into it by now to quarrel with positions and details. She quickly rolled onto her back and took my slippery cock and pressed it against her opening and pulled me back inside.

I took Annie’s legs and moved her ankles to my shoulders. As I accelerated my pace of pumping in and out of her pussy, I could now watch those tits swaying almost in circles on her chest. Sometimes they’d brush all the way up to her chin. I could have cum just watching that visual but I continued to distract myself.

“Don’t cum,” said Annie. She knew I was close. “Hold on, please.”

Sometimes I would lean down bending her knees into a circle. My cock and balls were soaked. I would slide it in and out all the way to the tip and then go balls deep inside of her again. The cool air against my wet shaft would quickly sink back into her red hot and wet pussy. Annie was getting dizzy. Her tits within reach let me use one hand to play with them and lean lower to lick her nipples and make them stand at attention in the cool night air. Now they were a darker reddish color also. The contrast against her milky white skin was art unto itself. I could also move up and kiss Annie passionately on the mouth. Our kisses were hungry and almost angry.

While I kissed my sister I lay almost flat against her. That increased the friction of the shaft of my cock rubbing the inside of her pussy. The tip was hitting the “ceiling” of her pussy. I was simultaneously squeezing her tits enough that the information overload in my mind was overpowering.

“I’m going to cum,” I gasped.

“Shit!” said Annie. I knew it meant that she wanted more.

I waited until the last possible moment and slipped my cock out. The wet shaft fell against her clit which pointed the tip up. A stream of cum shot out and landed just past her right collarbone with some in her hair. A second jet landed between her beautiful tits just short of her sternum. Seeing that puddle of my cum on my sister was itself a turn on.

I pushed forward so that the cum oozing from my cock didn’t run down onto Annie’s pussy. Instead, it formed a sloppy puddle a couple of inches from the crease of her pussy.

With my hand, I reached down and resumed stroking her clit. It was considerably larger now. It almost felt dryer without us fucking just below it. I resisted temptation to use my cum and spit in my hand and used that against her as a lube.

Within less than a minute Annie’s thighs slammed shut trapping my hand and she grinded against my fingers. She gasped loudly and twitched. I watched as the cum I’d shot onto her chest started to roll down her ribs onto my bed.

I leaned down again and resumed kissing Annie on the mouth. This time the kisses were no less urgent. Our mouths opened and our tongues chased each other as Annie gasped a few more times finishing her orgasm.

We knew it was getting late and that Mom would be up soon.

I grabbed my still damp towel from my shower earlier and helped Annie clean up. I couldn’t do much with the cum that landed in her hair. That was on her (literally).

Quietly, we said good night as Annie dressed near the door to my room.

I marveled at her stunning body naked in the glow of my stereo.

I wrapped the now wrecked towel around my own cock and headed to the bathroom nearest my bedroom. Though exhausted, I had to stroke my cock back to attention and jerk off at the thought of what had just transpired between us. I could smell her scent on my hands and sucked my own fingers as I jerked off.

What could equal the sensation of fucking Annie?