The news that Aunt Liz would be staying with us mollified me a little-and confused me a great deal! Why should she want to stay with us when she lived only a few miles away? And why hadn't Aunt Liz said anything about it earlier in the day? It didn't make sense. Even when Aunt Liz arrived and said how grateful she was to be able to stay with us while her house was being redecorated, it did nothing to clear up my doubts.
Bob and I had a moment alone near bed time. I saw in his eyes that he was as disappointed as me… though didn't I see a spark of anticipation there as well? Nora was extremely attractive and her tits were bigger than mine. But I felt silly for thinking along those lines. Why hadn't he gone after her before, while I was at school? Nora's views on sex were somewhat reassuring, too.
“See you tomorrow,” Bob said.
“Couldn't you sneak into my room sometime tonight?” I whispered. “Elaine won't mind, I'm sure of it.”
“I'll see,” he said.
“Do try, Bob, just for a few minutes,” I said.
But the hours went by and he didn't show. I lay in the darkness of Elaine's room listening to her excited stories about her hiking experiences and how she had taught her friend to masturbate while they were skinny dipping in the woods. I was glad for her but too preoccupied with my own desires to get involved with here. Even when Elaine suggested she come into my bed I kept her at a distance. I told her I was too tired-and I was! Yet I couldn't sleep for fear of missing Bob's visit.
Eventually, when Elaine's regular breathing told me she was fast asleep, I had to go check for myself. I slipped on a nightie and stole out of the room to tiptoe down the hallway. My hands closed around the knob on Nora's door and turned it slowly while I held my breath. It was locked. That aroused all of my suspicions. Why should they lock their door if not to keep me out? I turned around and went downstairs, hurrying down the stairs so fast I almost tripped.
The cool night air made me shiver convulsively. I stood still and wrapped my arms around my body for a moment, doing my best to calm my nerves. Brothers and sisters can't afford to give in to jealousy. That's what Aunt Liz had said and deep down I knew she was right. But I had to know what Bob was doing behind that closed door!
A big oak tree grew near Nora's window, its thick branches spreading in all directions. As kids we'd spent an awful lot of time in that tree, building cubby houses and playing pirates. Now it was to serve a more serious purpose. I jumped up and got hold of the lowest branch, lifted myself up and went for the next one. In no time at all I got to the branch that ran past Nora's window. The light was on. Nora lay in the bed nearer to the window, Bob was on the bed at the other side of the room. But that didn't mollify me because Nora was naked and watching Bob masturbate!
I bit my lip and fought down the temptation to burst through the window like some kind of an avenger. After all, they weren't doing anything wrong… they were only thinking about it.
Nora seemed fascinated by Bob's cock and the way his hand stroked it. She lay perfectly still, her head turned towards him, just watching. I began to wonder what was wrong with her. Now mat I could see what they were doing my imagination no longer had the power to upset me. And as I perched in the tree for a while I began to see the nicer aspects of the situation. Brotherly and sisterly love in action. Why should I want to keep Bob all to myself? Elaine was still a virgin… and Nora could well be, too. If it hadn't been for Bob I'd be just as badly off. No, it would be too selfish of me to insist on monopolizing Bob.
I noticed that Nora's hands were clutching at the sheets as though she was afraid to let them loose. Now and then it looked as though she was about to begin caressing herself, a flutter of her fingers quickly checked. I had no such inhibitions. The sight of Bob jerking off excited me all over. His cock looked so thick and tall, and he seemed to enjoy the friction of his hand so much. Besides, I knew how nice his cock felt to the touch, and the empathy of it was too much for me. My hand slipped down into my nightie and began to squeeze my tits one by one. It made me feel closer to him somehow. Once started, the ball could not be stopped. My loins began to tingle with a new lust, fresh and frisky, demanding satisfaction. I made myself as comfortable as possible in the arm of the tree, snuggling back with my legs pulled up so my chin rested on my knees. In that position I had an excellent view of the room and it was easy to get at my clammy pussy too.
One finger ran along my slit very slowly, just stirring up the centers of pleasure down there. Bob's hand conducted me. Up and down, at a measured pace, his closed palm applying the erotic friction to his cock that my finger brought to my clitoris. We weren't all that different. But I did secretly wish for a clitoris as big as his cock! To have both members, one on the thigh, the other between one's legs so that one could fuck oneself merely by crossing one's legs! The thought of that made me shiver with lust and my finger eased into the runny hole just to fill up the hot vacuum for a moment.
Nora seemed close to cracking under the strain. Her hands became increasingly restless and several times she actually touched her full breasts before shamefacedly returning her hands to her side. She looked so beautiful in her bed, so virginal somehow! My eyes ran over her long, full-blown body over and over again, savoring the soft curves and the pert tits pointing up at the ceiling. Her nipples were dark pink and hard. I was willing to bet that under that thick thatch of hair her cunt was running over. At last she couldn't resist any longer. Both her hands went up to her tits and she began to maul them with a passion borne out of guilt. Bob smiled encouragingly at her and, just to help her along, got up and masturbated standing by the side of her bed.
My finger was right up my cunt now, snooping in and out noisily. The other hand was wedged between my legs and tits, squeezing the sensitive nipple with a vengeance. I wanted to stretch out, to strip, and masturbate luxuriously; yet my confinement helped to distill the process, intensifying every thrill till I almost fell out of the tree.
Bob stood over Nora, cock in hand, stroking from the base right over the glans, back and forth with a mesmerizing rhythm. Nora's head lifted off the pillow and for a moment she pursed her lips and seemed about to swallow him. Then she fell back and one hand slipped down her belly to start rubbing her cunt vigorously. Her eyes never left Bob's big cock.
I wondered how long Bob could hold off. His face showed that he desired Nora's sexy body more than anything in the world at the moment. He was trembling and sweating, growing increasingly tense. The moment came, I could see it coming-he threw himself on top of Nora and began to rut like an animal, his cock thumping against her belly, her thighs, everywhere but her cunt. Nora froze. She turned a deadly pale and lay there like a block of ice. Only her legs moved. And they moved towards each other, to close like iron gates. It took Bob some time to take the hint. For a minute or more he threshed on top of her, desperate, driven crazy with his own lust… and then, gradually, he slowed down, slower, slower, down to a dead stop, his face turning red with a mixture of anger and embarrassment as he realized the full extent of his mistake.
He jumped to his feet and took his cock in hand. Nora relaxed and looked up at the mighty member that was getting the treatment just above her face. I could tell she wanted to get further away from it but she was afraid to upset Bob even more. He looked grim and masturbated with great singularity of purpose. I liked to see him go at himself this way, so brutal and pragmatic. My finger moved in and out of my box in time with his hand, my eyes rivetted on the swollen, flushed glans. Any moment it would give up its load of cream, the selfsame spurts that had tickled my innards so excruciatingly earlier. Nora just lay there, watching and waiting for the inevitable.
Bob and I came at the same time. My body drained itself of the knot of lust just as his cream burst out and fell in long drops on Nora's face. She made no move to dodge it. Pearl necklaces of sperm wreathed her nose, her lips and eyebrows, but she neither tried to lick at it or avoid it. It was as though she didn't know what was happening. Bob's face was compressed in a grimace of lust and pain as he bent over and jerked off even harder to squeeze the dregs out of his balls. Only drops came out now, welling up slowly and finally being lowered on thin strings of sperm till the string snapped and another fat drop landed on Nora's face. I had sagged into the arm of the tree, watching the spectacle through hooded eyes. Now that it was over I just wanted to go to sleep.
Bob gave his shrinking cock an abrupt shake and went back to his own bed. He pulled the sheet over his head and turned his back to Nora. She remained perfectly still, looking up at the ceiling. About five minutes later she got up and wiped her face with a handkerchief. She neither tasted it nor smelled it, just cleaned it off and turned the light down.
I clambered out of the tree and walked slowly back into the house. My legs felt weak and I could hardly keep my eyes open. The stairs seemed twice as long as usual. Yet, when I got into bed I couldn't fall asleep! My mind kept turning round and round, checking the situation between Bob and Nora. Should I be jealous? That was the question. Nora was my sister, Bob's sister, we were all equal to each other. Besides, Nora had problems that only a
