Exhausted, I lay on my back, arms stiffly standing up into the air.
"Whew! You really know how to tire me out," my sister murmured next to me, and I turned to smile at her. Despite having just unloaded my seed into her, I couldn't help but admire her lithe naked body, as her chest heaved, and her auburn hair lay plastered to her head, full of sweat.
It was Sunday morning, and Lisa had wanted to get one last good screw in, before our mom returned from her little vacation with Sarah. Personally, I was dreading her return, not because I didn't love or miss my mother, but between Lisa, Faith, and now Jenny too, I was sexually worn out. Her return would only mean even more sex in my future, and even though I was still young and had a healthy sex drive, five women were becoming more then I could handle. And then there was Geo...
"I'd better jump in the shower, before we go pick them up," my sister turned and gave me a quick peck, before dropping her head to my lap, and cleaning me up with her mouth. For some reason she had started doing that, and I was the last person who was going to complain. Even though there was no chance of me getting hard anytime soon, it still felt great. When she was done, she helped pull a pair of shorts onto me, and then left to get herself cleaned up.
The doorbell rang, drawing me from my thoughts and relaxation. It took me a couple seconds to get the door open, but I couldn't help the grown that escaped me when I saw who'd come calling.
"Your mom should be back this afternoon, so I wanted to get another load from you this morning." Geo told me with a smile.
"Did I hear the doorbell ring?" Lisa asked, rubbing a towel against her wet hair, and wearing another towel around her waist. It was almost weird to see her covered in the towel, but it dawned on me that she must have put it on because someone was at the door.
There was no way I felt up to getting it on again, so soon after Lisa had just worn me out, and I still wasn't sure how I felt about Geo getting pregnant by me, rather than her own brother, John. It wasn't that I had a problem getting a girl pregnant, but that I didn't much like the idea of not being a part of that child's life.
"Oh, it's you," I heard Lisa say behind me, as she walked to the front door. "I suppose your here for more of my brother's sperm?" I noted the unhappy tone in Lisa's voice, as well as the resignation. She wasn't too thrilled about the whole thing either.
"Yeah, I figured I might as well get another load, before your mother gets back. John is at some conference this weekend, but he comes home tonight." Geo said as she stepped past me.
Part of me wondered how she hadn't become pregnant already. Was she only using it as an excuse to have sex with me, and taking contraceptives? I have already dumped my spunk into her numerous times, and despite her protestations, I knew she enjoyed it. Why then, was she not pregnant yet?
All at once I felt completely overwhelmed, and the word slipped from my mouth before I could stop it. "No."
"What?" Both Lisa and Geo chimed together.
"No," I repeated, lifting my gaze to look at Geo, certain about how I felt. "No more. If you want to get pregnant, you are going to have to either talk John into it, or find someone else. I'm done."
"But..." Geo trailed off, and if I hadn't felt bad for her, I would have laughed at the way her mouth hung open as she looked at me, not comprehending what I'd just told her. "But..."
"You heard him," Lisa said, coming up, and placing her hands on my cast covered shoulder as she gave me a soft peck on the cheek. "If you want to get pregnant that badly, go talk to your brother, and leave mine alone."
Geo closed her mouth as she stared hard at us, before turning around and slamming the door shut behind her. I hoped John would change his mind, for Geo's sake. Geo was a great girl, and there was no denying her sexual prowess, but I realized that I really needed to cut back on my women. Too many was just too many.
"Thank you, Jason," Lisa whispered into my ear. "I don't know what made you change your mind, but I think I know a way to reward you." Her hand deftly slid inside my waistband, and grasped my flaccid cock, trying to bring it back to life. Good as it felt, I couldn't be dishonest with her.
"I didn't do it for you," I told her, as kindly as I could. "I did it for me." Lisa's hand snapped out of my shorts quicker than I thought possible, as she walked in front of me, a curious expression on her face. "I'm worn out, and exhausted from too much sex," I told her. "I never thought a man could feel that way, but I need a little break." It was the wrong thing to say.
"A little break?" I could hear the heat in her voice, and I cringed. "I thought you did it because you loved me, but you only need a little break. I suppose that means from me too?"
"Wait, Lisa, no!" I tried to protest, but she spun and stormed down the hallway, her towel falling from her halfway to her room, and she let it stay on the floor. Even angry, her ass looked great as it slipped into her bedroom and a second door was slammed that morning.
Sighing to myself, I walked over to the towel, and using my foot, flipped it up, and caught it on my right cast. I knocked on her door, and could just make out her muffled crying on the other side. "Go away!" she screamed through the door, but I couldn't leave her like that.
I tried the door, and found it unlocked. Taking this as a good sign that she really didn't want me to leave her alone, I stepped into the room, greeted by the sight of my lovely sister, face down on her bed, still nude.
"I said, go away," she was muffled with her face in her hands, and I wished that I could wrap her in my arms and comfort her.
"Sure," I tried to sound calm but wasn't sure if I pulled it off. For some reason I was nervous, and couldn't figure out why. "But I wanted to talk to you first."
My sister turned to look at me, and I could see that her eyes were red from crying. "What is there to talk about? You don't want to have sex anymore. So fine, I won't force you to fuck your loving sister anymore!" Her accusing eyes bore into me, making my heart ache, despite the language she was using.
"Lisa, you have the wrong idea," I told her, and considered my words carefully, "I love you, and don't want to stop or lose what we have." I tried to pour all the love and caring I held for my little sister into my eyes, as I looked down at her. "I'm sorry I hurt your feelings, but there is something that you should know." I paused, as I continued looking at my beautiful eighteen year old sister. "I have never had sex with you," her eyes grew confused, and I knew she was listening intently, "I have only ever made love to you. Please don't take that away from me."
I saw her heart melt as comprehension took root. "But you said you needed a break," she said, and all anger and pain were gone from her voice, replaced now with tender uncertainty.
"I need a break from them: Geo, Faith, and Jenny." I knew it was a risk bringing up Jenny. Lisa hadn't been too happy about her being back in my life, but Faith had made it clear that I had done it solely for her. Over the last week, I had rarely seen my red-headed girlfriend, and Faith had told me that she was keeping the woman quite satisfied, but sometimes they both needed a real cock. My half-sister knew just where to get one.
"What about mom?" She asked, and again, I knew I had to be honest.
"Do you really think mom is going to leave me alone after being gone all week?" I shook my head, knowing the answer. Mom was just as horny as Lisa was.
"Maybe she found herself a man, while she was away," Lisa said hopefully, and I knew I had been forgiven.
"Maybe," I conceded, and then smiled as Lisa sat up, and threw her arms around my neck, her naked breasts pressed against my chest.
"Did you really mean what you said about making love to me?" She asked, and in answer, I leaned my head down, kissing her tender lips softly. She met my kiss with a gentleness of her own, and for a moment we sat like that, her holding me tight, and our lips pressed together as one.
I felt fresh tears touch my cheeks, and pulled back to look at my sister. "What's this now? Why are you crying?"
"You big oaf, it's because I love you too!" she informed me, then brought her mouth back to mine, and this time the kiss was stronger. I felt her tongue start to press against my teeth, and I opened up, greeting hers with mine.
I fell back onto the bed, and she followed me down, climbing on top as our kiss intensified. Despite all my thoughts of not being able to get it up earlier, it wasn't long before I was poking her slit through my shorts as she rocked her hips atop me.
Lisa suddenly pulled away, and looked at me confused. "Wait! You wanted a break. I am so sorry."
"Don't stop now!" I pleaded. "A break will be fine, but only after this time. I really need my sister right now."
She grinned at me, and lifted her hips for only a second, before planting herself directly on my bulge. She started to glide her hips up and down, and I could feel her heat through the thin cloth of my shorts. I moaned to let her know I was enjoying what she was doing.
She brought her right hand down, and slid it into my waistband, easily finding my cock, and lifted it slightly, to press harder against her crotch. She picked up her pace, and started twiddling her left nipple with her other hand, moaning and closing her eyes at her own pleasures.
I started hunching my hips in rhythm to her movements, really enjoying the look on her face. Suddenly Lisa dropped forward, mashing her lips to mine as she started to cum, soaking the front of my shorts. I kissed her lovingly, as her hand continued to stroke me within my shorts. Pulling her lips from mine, she put them next to my ear, whispering, "I really want you in me, Jason." I just nodded, and with one deft motion, she pulled the hem of my shorts down, lifted up, and impaled herself on my massive pole.
We both groaned loudly, as we became one, and I felt my tip hit her deepest depths. Despite having been inside my sister not that long ago, she still felt tight, as her inner folds massaged me.
Our lips came together again, as she started to move her hips, and she placed one hand on my chest. She was extremely wet, and I couldn't help but wonder if some of it was my own cum from earlier. I was glad that mom had put her on birth control. I didn't mind the thought of her getting pregnant, but I didn't want kids right away.
Suddenly I wondered if Faith was using any contraceptives. We had never talked about it, and yet I had emptied myself into her countless times, also.
