Sara was getting used to having her legs mostly out of commission, and consequently had gotten way more adept at moving herself around. She would use her wheelchair for distances, and then maneuver from chair to resting place with the crutches. Her years of ballet training probably helped her in this dance. With her increasing independance however she was relying on me less and less. Our last close encounter with Mom had scarred us both straight, so to speak, and for the past few days we hadn't seen much of eachother. I hoped that Sara was having an easier time with the lack of initmicy than I was. I was in agony. At first I thought I could use the time to convince myself that I diddn't lust over my 14 year old sister, but only a few hours into the first day of her rebuffing my advances proved that that goal was futile. I was indeed in love with her. I wanted her, body and soul. Our parents decided to take us to Mexico on vacation and the night before we were to leave, we were all getting our bags packed. I was rumaging through the clothes in the washer and the dryer, trying to find my favorite shirt to make sure it was or would soon get cleaned, when I found them. Sara had set a small hamper of clothes next to the washing machine, waiting for the current load to be done before she could start her own. I had 'accidently' looked through it, and at the bottom I found a pair of her panties - small, bikini cut white cotton panties, stained yellow! Evidently she was still having trouble with her bladder. I held them to my nose and inhaled, before I had to drop them as I heard footsteps coming down the basement stairs. "Oh, hello dear," my mother said as she stepped down onto the basement floor. "Have you got all your laundry done?" "Almost, mom." "Good, we're leaving in the morning and I want to make sure not to have any last minute delays." "I'll be ready." "Good. Oh, and you and your sister will be sharing a room in Cabo, I hope you don't mind." "No," I said, blushing, "I don't mind." "Good. You've been being so nice to her, I really appreciate it." I smirked as she said this, wondering if she would still be so happy if she knew what was really going on. "Oh, would you look at that?" her eyes pointed down at the pair of stained panties on the top of Sara's pile of clothes. "I wonder if she's feeling okay, I should have a talk with her." As she began to move clothes from the washer to the dryer, I snuck away and ran up the stairs, blushing profusely and giddy with excitement at the idea of sharing a room with Sara. -------------- <> "Come on, hurry!" my father encouraged us as we ran through the concourse towards our gate. We had been plagued by delays and were running very late. "But I really need to use the bathroom!" Sara complained as I pushed her along in her chair. "No time sweetie, you'll have to wait until after we take off!" Ten minutes later we were taking our seats, after having suffered the looks of derision from the rest of the passangers on the plane who knew that we had held up the flight. Sara and I were sitting next to eachother - her by the window and me in the dreaded middle seat. The aisle seat was taken up by a woman who appeared to be in her twenties. Shoulder length blond hair fell in front of a lightly freckled face. She was petite, or would have been had she not been very pregnant. Her belly bulged out, almost touching the seat in front of her. She had stood up to let us into our seats, and smiled politely, apolgoizing for her girth as we squeezed by. The parents were sitting several rows in front of us. Sara's kept shifting uncomfortably, fidgeting and restless. The stewardess had taken her crutches after she took a seat and locked them in a cabinet in the back of the plane. The plane was just begining to creep backwards, rolling away from the concourse. "I wish they would hurry, I really need to pee!" She whispered to me under her breath. Her hands were fidgeting wildly now so I took her hand in mine and squeezed it. "Just try to think of something else," I suggested, knowing that it probably wouldn't do any good, but not having any better ideas. The stewardesses began the safety presentation and I looked around, still holding Sara's little hand in mine. The woman next to me was following along in the safety instructions card, so I took the oportunity to look her over. Her dress was a dark red with a flower pattern, and in her sitting position rode up on her thighs pretty high. It seemed rather tight on her, but she was so big that I assumed she was close to her due date and didn't want to spend more money on maternity clothes she would only get to use for short time. The plunging neckline of the dress exposed her glorious breasts, obviously swelling at this late stage of pregnancy. Her skin was pale, smooth except for little goosebumps that appeared on her thighs, she was obviously a little chilly. I had never thought about a pregnant woman in a sexual manner, but now I found my mind racing with thoughts of what she might look like without her clothes. I wanted to know how soft her thighs were, how much of her breast would fit into my mouth, and how warm it must be between her legs and under her belly. On my other side was Sara, my kid sister. She was wearing a pair of jeans with a tight grey tshirt. The shirt was plain, but was tight enought that I could makeout the line of her bracups, pressing tightly against her tiny tiny chest. Sara held my hand as we took off, squeezing tightly when the wheels of the plane left the ground. Fifteen minutes later and we had reached our cruising altitude, but the seat belt light over the seats had yet to turn off. Sara was taping her heel quickly now; she really had to go! "Why haven't they turned off the fasten seatbelt sign?" she whispered urgently to me. Then, as if to answer her question, the stewardess came over the intercom: "Thank you for your patience ladies and gentlemen. The captain anticipates some turbulance for the first part of the flight and has decided therefore to keep the fasten seatbelt light illuminated. Please remain in your seats with your seatbelt fastened. Beverage service will be suspended until the captain has cleared us to move about the cabin." Sara looked as if she might cry. She was fighting it though, and didn't say anything for another ten minutes. Finally she squeezed my hand tightly and whispered to me. "I don't think I can hold it anymore." "Okay, I'll press the call button and get the stewardess, maybe she can help you to the bathro . . ." Sara grabed my hand as it reached up for the call button above my seat. I could see fear in her eyes, and shame. I looked down at her lap and she spread her legs a little so i could see the small circular patch of wet denim that had formed in the crotch of her jeans. I jumped into action. Luckily I had got a blanket from the stewardess before we took off. I unfolded it and threw it over Sara. Then I reached under the seat in front of me and pulled my sweatshirt out from my backpack. I jamed it under the blanket and whispered to Sara, "OK, we're going to have to use my sweatshirt to absorb as much as we can before you make too big a mess in your jeans." Sara nodded her understanding and plunged her hands under the blanket. I could see the strain on her face as she tried to hold it in. Sara unsnapped her jeans and zipped them open. She lifted herself off her seat for a moment as she pushed the jeans off her hips and down to her thighs. As she did that I pushed my sweatshirt between her legs. She lifted her butt a little off the seat again, and I slid my hands down between her legs, pushing the sweatshirt down and underneath her. I patted it flat and began to pull my hand out. My hand brushed against the soft flesh of her thighs, and the soft cotton of her panties. Right as my fingers moved over the small wet spot on her panties I felt it. Sara had lost her fight and now the pee gushed out of her. I pressed my hand against her panty-clad pussy as her warm urine sprayed against my palm. I cupped her pussy harder as the piss hit my hand and spread out around it, absorbing into the sweatshirt I had pressed between her legs. A soft moan and a gasp escaped Sara's lips as the tension in her body was released. I watched her little chest rise and fall as she breathed deeply and slowly, my hand bathed in my little sister's piss. Sara's eyes were closed and she made no effort to push me away. I had her like that for a good while after the stream subsided - just cradelign her soft, wet mound in my hand - not moving, not speaking, just holding. Then a chime sounded and the illuminated picture of a seatbelt above our seats went dark. "Thank you for your patience, the captain has cleared us to begin our beverage service." Sara let loose a small giggle at the timing. "Now what?" she whispered. "I'll take it to the bathroom and try to wring it out I guess." "I'm sorry." She said sheepishly. "You've nothing to be sorry about." I said reassuringly. She lifted her butt up slightly and I pulled the soaking sweatshirt out from underneath her. It had indeed abosorbed almost all of the urine. I balled it up as small as i could without wringing it out under the blanket. I looked around and saw the path to the rear bathroom was clear, and it was unoccupied. My plan was to just cary the seatshirt quickly but calmly, no one would be able to see what it was if I did that. I turned around in my seat so i was facing the back of the plane and pulled the sweatshirt out from under Sara's blanket. I shuffled my feet sideways and began to slip past the pregnant woman on the aisle, wich was not easy as she filled out most of the seat. She appeared to be asleep, otherwise I would have just asked her to let me out. Right when I was directly in front of her, holding the balled up soaking sweatshirt above her, the plane shook with turbulance. My muscles immediatly tensed as I braced myself against the pregnant woman's seat with my knees on either side of hers. I clutched the sweatshirt tightly, trying to avoid either dropping it on her or smashing it into her face. As it was happening my brain showed it to me in slow motion. My grasping it tighter only served to squeeze the soaking garmet which was only barely holding the liquid inside. While my knees prevented me from smashing into the sleeping woman, I watched as pale yellow liquid was squezzed from the sweatshirt - cascading down and splashing down onto the woman's ample cleavage, running down between her breasts and onto her belly. The woman's hand shot up and scratched her chest, but she remained asleep. I quickly regained my focus and made my way safely to the bathroom. My cock throbbed in my pants as I wrang out the sweatshirt above the toilet - butterflies filled my stomach as I thought about what had just happened, and what had yet to happen. I unzipped my pants and took out my cock - I had to wait a minute to calm down, for my swollen member to go flacid. Finally I let go and watched as my urine mixed with my sister's in the toilet bowl. After flusing and zipping up I stuck the still damp sweatshirt under the little sink and reached for the water. Right before my hand reached the botton I stopped. I took out the sweatshirt and held it to my nose, the sweet scent of my sister filling me as I inhaled deeply. I couldn't bear to rinse it out, so I left the bathroom and returned to my seat. When I got back I saw that the pregnant woman had woken up, and that she was talking with Sara while dabbing at her chest with a few cocktail napkins that the stewardess had been handing out with the beverages. "I can't wait to get this baby out of me, my hormones are all screwed up." "I can't imagine," Sara replied, sympathetically. "I'll go from being freezing cold to sweating profusely for no reason!" She explained with a laugh as she stuck the wadded up soaked napkins into the empty cup on her tray table. The woman's blouse was soaked through and her breasts and brazziere were clearly visable through the thin fabric. She looked up and saw me as I approached the seats and smiled wide. "Oh, this must be your seat. Pardon me, I need to go to the bathroom and clean up anyway, I've sweated through my shirt!" She took the wadded napkins and folded up her tray. She struggled to her feet, her large belly hitting the back of the seat in front of her. I slipped into my seat as she walked back towards the bathroom. "I'm so embarrassed," Sara began, "I'm so sorry you have to deal with me, I don't know what is wrong with me recently." "Don -(TM)t worry about it, " I reassured her, "honestly I don't mind, you know I like taking care of you. " I grabbed her hand and squeezed it. "Was that . . " Sara began as her face turned bright red, "on her blouse . . . " "Yes, I accidentally got her a bit wet when I was trying to squeeze past. " "Oh god, I'm so ashamed . . " "Don')t be, I don't think she knows what it is." Just then the woman came walking back down the narrow aisle. Her still damp dress clung tightly to her engorged breasts and ample belly. As she took her seat next to me she saw us holding hands. "You two are such a cute couple! " She declared with a smile. "I remember when I was young and in love. " I glanced over at Sara, but she didn't say anything, only blushed. "Go on, give her a kiss, enjoy yourselves! " Sara blushed even harder, but didn't say anything. Her tongue flicked across her rosy lips and I leaned in to her. She smelled like Sara, which was quickly becoming my favorite smell in the world. I pressed my lips to hers, gently, softly. Her lips parted slightly and I felt her tongue press against mine. We kissed deeply, passionately - for what felt like an eternity but was in reality only a few brief seconds. As our lips parted I recognized a sparkle in her eyes. "Oh, to be young again, to have your whole lives in front of you . . . " The pregnant woman chattered on for the rest of the flight, only pausing every now and then to wait for an answer from one of us. Sara and I held hands the whole time, until the plane came to a stop at our gate. to be continued . . .