Both my sister and I stared at the status board in disbelief. Our flight to England to see our father had just departed, and we were stuck at the airport for the night. The next available flight was twenty-four hours away.

"Crap! I knew this would happen. Our layover was too tight to begin, and then our flight was late."

My nineteen-year-old sister had made the reservations, and now we were paying the price. We were stuck in the airport for a lengthy spell, and both of us were already exhausted. We had left our house at 4:30 a.m., but our initial flight was delayed due to mechanical problems, causing us to miss our international flight. Our father had invited us to visit him and his wife in the English countryside. He had even paid for our tickets, but our trip was now on a brief hold.

My mother had died due to complications of my birth, and my father had remarried shortly after. My step-mom was soon pregnant with my sister, and so we were basically raised together from infancy. We were technically step-siblings, but we were close to one another.

Elaine had recently metamorphosed from a geeky tomboy into a woman. Her stick figure gave way to prominent curves during her last year of high school. Her athletic body was tightly toned despite her fleshy figure. I had become aware that she was turning heads and had lots of boys sniffing at her heels.

But given our situation, as the older sibling, I made a command decision.

"No way am I spending the entire night and day here. Let's take a shuttle and get a room so we can relax. We'll text Dad about our status and hang out in comfort. Besides, I'm pooped and the thought of sleeping in an airport lounge chair does not appeal to me."

As a recent graduate, I have experienced my share of travel woes over the years, going back and forth to college on a student's budget. Elaine readily agreed with my plan.

We inquired at a help desk and discovered an inexpensive hotel near the airport with a free shuttle and reserved a room. In short order, we were lugging our bags down a long hallway on the second floor with no elevator. We entered our room and collapsed on the bed. It wasn't the Ritz, but it would do. That's when we realized there was only one bed.

"I thought you said the room had two beds. Am I supposed to sleep with my brother?"

My sister smirked at me and punched me in the shoulder.

It was the only room left when we arrived. I'm too tired to find another place since it's just for one night. I'll let you choose which side you want. No big deal."

"Okay, but no snoring. I'm beat as well. Let me have the bathroom first.  I’ll change, and then you can have it. I'll probably be asleep by the time you are ready for bed."

Elaine opened her luggage and retrieved her night clothes, toothbrush, and other essentials. I turned on the television to stay awake while she transformed herself in the bathroom. One of the options was an adult pay channel, but the trailers were free. I turned the volume down to silence the grunting and moaning as a bosomy blonde rode the lap of a muscular man with a giant cock. Instantly, my own member swelled in sympathy to his situation. Even though I was bushed, I was still a healthy male who had not had real sex in weeks. The sight of an attractive couple copulating was all it took to get my hormones activated.

Suddenly, the bathroom door opened, and Elaine did a double-take.

"Geez, Ron. What are you watching? Porn? I thought you were tired. My god! Look at the size of that guy's penis. Is that real?"

The scenes were changing rapidly since they were only trailers. Now the woman was trying desperately to fit his huge cock head in her mouth. Her full lips could barely accommodate his girth as she valiantly tried to choke it down her throat.

"I turned the TV on and this is what came up," I lied. "You can shut it off. Go ahead and get comfortable and I'll be a few minutes in the bath. I didn't bring pajamas cuz I sleep in my shorts, so don't be alarmed. I'm going to hop in the shower first."

It was then that I looked more closely at my sister. She was wearing a cotton nightie that came to the tops of her thighs, but her panties were visible. Her nipples protruded teasingly from large, jutting breasts. Without a bra, her boobs jiggled like Jell-O. I excused myself and closed the bathroom door behind me. I removed my street clothes and realized my cock was now rock hard from the porno trailers as well as my sister's jigging breasts. Automatically, I reached down and pulled it out of my Tommy Hilfiger briefs. I stroked it a few times but reluctantly stopped when I realized it would take too long for me to blow a wad in the bathroom. I hopped in the shower and sudsed up, paying special attention to my cock.

Jesus, Elaine's hooters are bigger than I thought. And nice nips, too.

I stepped out and grabbed a towel, but first posed in front of the partially fogged mirror. My cock was at full attention.

I dried off and made a show of noisily brushing my teeth as I stroked myself and admired myself again in the mirror. I worked out regularly, and my body was muscular and toned. I turned sideways and smiled. My rigid cock filled my hand with the bulbous glans sitting proudly at the end.

Shit, better stop, you perv.

That's when I noticed Elaine's bra hanging on a towel hook.

Thirty-four D. Jesus, I had no idea they were that big. She always dressed to hide them, apparently.

I flushed the toilet as if I had been using it, and reentered the room. I had hoped Elaine would be asleep so my boner would not be so obvious, but she was sitting up and still watching the porn channel. The covers were bunched around her waist, and her breasts were highlighted by the nightstand table lamp.

"God, this stuff is wild. I've never really watched this kind of smut. Look at those fake boobs. They're like balloons."

I slipped into bed and covered my groin quickly with both my hands and the bedcovers. My erection was not going away without a fight. Elaine eyed me briefly and giggled.

"It's okay, Ron. I see you like this stuff. Does it get you excited? Is this the kind of stuff that men beat off to?"

"Yeah, of course. I mean...I guess so." Guilty or not, I was not about to admit to my little sister that I beat off to porn. But then, looking at her sitting up with those beautiful cantilevered breasts outlined and in a bed I was about to crawl into, my mind began working on the beginnings of a fantasy.

"I'm not a virgin, Ron, in case you are wondering. But I'm not exactly overly experienced either. I know videos like these exaggerate everything, but look at the size of that guy's penis. He must be a freak. And he's not even that big of a dude. That thing would hurt!"

"Yeah, no small dicks in porn. Maybe we'd better shut this off. Or, we can pay for one if you want to watch the whole meal. Up to you."

"No. I've seen enough with these teasers. I don't want you to get too excited, or me either. This might give you ideas. I'll shut it off, and you can just cuddle with me. It's been a long day. I'm pooped."

Elaine turned the nightstand lamp and the television off, leaving the room bathed in moonlight from an open window facing the parking lot. She briefly kissed me on the forehead and then turned to face the wall, but not before scooting back until her buttocks were spooned against my groin. Surprised by her bold gesture, especially because she had lots of room in the king-sized bed, I reached around her waist and hugged her gently. My hand was just below those fabulous breasts that I so desperately wanted to feel.

As I imagined my hand reaching up and fondling a puffy nipple, my cock stiffened again.

My natural, male response would be to rub my thickening cock against my sister's ass, but I resisted and didn't move. However, Elaine did. She slowly rotated her hips against me, and I swear she moaned slightly. I was frozen with indecision.

We lay that way for several minutes. And then I felt her hand grab mine and slide it up to her breasts, now protected by only her thin cotton nightie. At first, I didn't respond, but in time, I slowly squeezed and massaged her ripe flesh until I felt the obvious swelling of an engorged nipple. At the same time, her hips wriggled ever so slightly against my now-rigid cock.

I didn't know exactly where this was going, but I was enjoying it too much to question what was happening.

I placed my face in the back of her neck and inhaled her sweet, feminine fragrance before kissing her there. My brain was on fire, but I paced myself and tenderly hugged her warm body. Suddenly, a hand slid between us and found my cock through my briefs. She rubbed its length as if to measure it, and then she reached inside my briefs and found my actual flesh. My eyes opened wide as a small hand encircled my shaft and slowly rubbed up and down its length.

So far, no one had said a word.

"Um, Elaine! What are you doing?"

Her hand froze, my stop still gripped in her fingers.

"Oh, geez. Sorry Ron. I couldn't help myself. That video made me so horny, and then I felt your erection. I'll stop. I'm probably not doing it right."

"Oh, no. That's fine. It feels wonderful, but I don't want you to think badly of me."

Her hand commenced stroking my iron-hard prick.

"I'd never think badly of you. This was my decision. Am I doing it okay? God! You are so hard. And big!"

"Oh, fuck, Elaine. Yes, please! Just like that."

She intensified her efforts with my pleading, her hand slowly gaining speed. Then, as quickly as she began, she stopped.

I groaned in disappointment. Just another prick-teaser, I thought. But then she spun and faced me.

"Am I doing it the way you like it? Does that feel good? That movie made me so horny. I hope you don't think I'm a slut or something. I just want to make you feel good."

"Yes, please. Don't stop. That feels wonderful."

Elaine turned around and kneeled over my thighs after kicking off the covers. She released me momentarily, and with both hands raised her cotton nightie over her head and removed it. In the moonlight, her twin orbs became a study in black and white photography. My sister sported two of the most beautiful breasts I had ever seen. Each full mound was topped with a large, puffy areola and a prominent nub.

"Would you like to kiss my nipples while I stroke you. They are really sensitive. They have grown so much in the past year that I have to keep buying larger bras. Do you like them, or are they maybe too big?"

"Your breasts are fantastic, Elaine."

Immediately, my mouth greedily found a plump nipple and licked and sucked it. Elaine had resumed stroking me, and she took on a beatific smile as I nursed on her fat tits. The combination of her soft hands and my mouth on her breasts was doing its magic. I had not cum in over a week, and I felt a big one about to explode.

Elaine sensed it from the look on my face and doubled her efforts. I watched in disbelief as my little sister's two hands pumped my cock in a frenzy while her boobs jiggled in rhythm to her strokes. Suddenly I felt a surge and a huge stream of white sperm shot out the end of my cock and all over both of us. Elaine giggled and kept stroking as the first shot was followed by several others in rapid succession. The volume gradually diminished until the last remains dribbled down her hands. Soon, both of us were streaked in the milky goo, but her fist was draped in thick sperm.

"Wow. That was amazing. You really had to cum, didn't you? Look, you even shot some on my boobs."

Elaine raised her fist to her mouth and, without hesitating, tasted it. I followed suit and raised my head to lick a boob with cum hanging off of her nipple.

"Not bad. Not too salty. I've never tried it before, but I always wondered about the taste. I bet you never imagined us like this, have you, Ron? But I have." She smiled a guilty grin.

"My little sister just gave me a hand job. No, this is not something I was expecting. I'm not sure I've even had a fantasy this crazy, but you have definitely made my day. This is a trip I'll never forget."

As I was speaking, I couldn't help myself and fondled Elaine's breasts and pulled on her nipples. Her large pink areolae were begging me to feel them. Elaine reacted by stroking my cock lightly. She was smiling as she watched my cock slowly begin to stiffen again.

"You know, Ron. You have a very nice penis. It's big, too. Maybe not as big as the one in the video, but still big. I'm not a virgin, but my experience is limited to one guy, and he's, well...much smaller than you in comparison. Your penis is so fat. And look! You're getting a boner again. It's getting even bigger."

She rubbed her thumb over my knob and smeared the leaking remnants emanating from my piss hole around the glans.

Since we're already in this position, I have an idea. Let's just cuddle for a while, and then maybe you can put the head inside me–just a little bit. You know...actually in my pussy. I just want to feel what it's like to have a big penis like this in me. It wouldn't be like actual sex."

I pulled her to me and kissed her on the forehead. I was in no mood to argue.

"Sure. Whatever you want, Sis. But I need to warn you that it might be tough to follow your directions. My snake has a mind of its own."

"Yeah, maybe it's not a good idea. I might not be able to control myself either. Let's just cuddle. This is nice and cozy."

And that's what we did. Elaine lay down and pressed her back into me. I continued to gently fondle her plump breasts, but soon the events of the day caught up with me and I fell asleep.

I dreamt that I was in my own bed at home, and someone crept into my room and got into bed with me. It was too dark to see, but I felt a pair of lips on my cock. I lay back and let those lips work over me for several minutes, and just as I was about to cum, I realized the person sucking my cock was my mother! I woke up in a panic and realized my cock was rock hard and poking into the soft flesh of Elaine's ass. I was about to pull away when I realized she was pushing against me and spread her legs to let my cock squeeze between her thighs and rub against her pussy.

She wasn't wearing panties! I could feel her labia separate as my cock head speared up and down her sweet valley. Then I felt her small hand push on the underside of my glans, and my cock slipped inside that taboo portal. I froze.

Elaine moaned sensuously and held it there with her two fingers. For several seconds, we stayed this way, and then, ever so slowly, I felt her hips move into me, and my cock slid halfway into her pussy.

It had been quite a while since I had had actual sex, but Elaine's tight cunt was like nothing I'd ever experienced. Her moist chamber was velvety smooth and gripped my shaft tightly. I felt Elaine's hand on my stomach, which I took as a signal to hold it there.

"God, Ron. You feel so big inside me. I've never felt anything like this. I couldn't help myself when your hard cock pressed into me. I just had to feel you. I hope you're not mad. I broke our deal."

I said nothing for several seconds.

"If this is what you want, Elaine, I'm happy to oblige. Mad? Fuck, I wanted this more than you did, I promise. You are so tight. I'm going to just hold it there, even though I want to fuck your brains out. Your pussy feels wonderful. Your body is incredible."

I fondled her bare breasts and kissed her neck before putting my tongue in her ear and whispering to her.

"I love you, Elaine. I'm happy just to stay like this if you want."

But my best intentions were dashed when my sister began to wriggle her ass slightly, and then began sliding up and down the shaft, almost imperceptibly at first and then in ever lengthening strokes. Seconds later, I felt my hips glued to her bubble butt. I was buried in her cunt. All eight inches of my swollen cock were sheathed in her nineteen-year-old pussy. The Rubicon had been crossed.

I grabbed her hips and began methodically sliding my cock in and out of her. Her labia clung to my shaft as I withdrew and then pursed inward on my forward strokes. Her cunt oozed juices on my shaft, which provided lubrication for our mutual pleasure.

Elaine moaned sensuously and uttered explicit descriptions of what she was feeling. I had never heard her swear other than a few damns or similar mild oaths, but now every other...