The rest of our morning was fairly uneventful. After Kayla sucked me off, she curled up in my lap and we spent the rest of the morning eating bacon and watching TV.

"You guys ready to go back to school on Monday?" Johnathon asked between bites of bacon.

Kayla huffed in frustration, "No! Can't you guys homeschool us so Humphrey and I don't have to spend half the day apart?"

Johnathon gave her a sympathetic look, "We wish we could sweetie, but going to school is good for you guys. Besides you'll be in high school next year, you and Humphrey will be together a lot more then."

"Yeah during his last year of high school, then I'll be all alone for three years. And why is it 'good for us to go school'?"

"Well, you guys want to be together forever right? Have a family and all that?" We both nodded.

Johnathon continued, "Well if you want to do that, then you need to keep up a social life, meet people who are sympathetic to your situation, and marry them so you can live the lives you want in secret so no one will get suspicious."

I could see that Kayla was about to protest, but just as quickly as she had opened her mouth, she closed it again. I think deep down she knew Johnathon was right, even if she didn't like it. Her frustrations weren't unfounded, I wanted the two of us to be homeschooled so we could spend the day together. Although I knew that if we did that our entire say would be spent having threesomes with Sarah instead of learning anything. Still, that wouldn't be so bad.

Johnathon had to leave for a meeting with the other professors at the university where he would be working at, leaving Sarah, Kayla, and myself home alone for the next few hours. Kayla was looking at something on her phone, probably some kind of social media, and Sarah was rubbing her breasts as she was apt to do. I was watching her out of the corner of my eye while watching some nature documentary that was playing on TV.

Admittedly though, it was a bit too hard to focus on anything at all. The more I thought about what Johnathon had told Kayla, the more anxious I became. I had known for some time that Kayla and I would have to meet and marry other people so we could live our lives in secret, but that was easier said than done. How do you even bring that up to someone? 'Hey could you marry and devote your whole life to me so I can fuck my little sister in secret? Thanks.' It wasn't exactly something that would be easy to bring up. And how do you even meet someone whos sympathetic to that kind of situation? It's not like people wore signs above their heads that said 'Nudists Incest Family Member' life could never be that easy.

How many people out there were living peculiar lives? How many of the people I saw everyday, living their seemingly ordinary and uninteresting lives, were secretly engaged in some taboo? For all I knew, everyone at my school could have been involved in activities that would make my living situation seem downright normal by comparison. Then again, they could all be living the average life, with family where the relationship was completely... well familial.

I've almost forgotten what it's like to be a normal family. Obviously I haven't been sexually active my whole life, and even as a kid I feel like we were closer than most, but since we became sexually active everything has just been different. Don't get me wrong, it's only changed for the better and I wouldn't want it any other way. Sometimes I just wonder what it would be like to look at Sarah or Kayla and not think 'I wanna put my dick in that'.

We all sat there doing our own thing for another couple hours. A few minutes past 1:00, Sarah stood up and stretched her arms above her head and called over to me

"Hey Humph?" I turned to look at her as she spoke. "You wanna go do that thing before I make some lunch?"

I didn't need to be asked twice, I was already off the couch before she had finished her sentence.

"Are you guys going to be having sex?" Kayla asked, still browsing through her phone.

Sarah nodded and let out an, "Mhmm. You wanna join us?"

I could tell she wanted to say yes, but the soreness in her nether regions was apparent.

"I'd love to, but my cunt's still sore and I wanna let it rest until tonight." Sarah and I both nodded our understanding, and I leaned down to plant a kiss on my little sister's lips.

"Come on let's go!" Sarah cried out as she pulled me into her bedroom, practically yanking my arm off as she dragged me. She propped herself up on the bed, putting us at about the same height, and we both went in for a kiss. There was no slow, gradual build up here, our tongues marched together almost as soon as our lips did each fighting for dominance over the other. Mine was bigger and much more forceful, while hers had the advantage of being small and agile. After a minute it became clear there would be no definitive winner in this match, and we both pulled away, leaving a small trail of saliva as our mouths separated.

With no clothes to take off, we went right in to admiring each other's bodies. My hands rubbed up and down the sides of her waist before moving up to cup her breasts in my hands. I grabbed around each of them with my palms while I toyed her nipples with my thumbs. Sarah tilted her head back and let out a sigh of contentment. I quickly took an opportunity to move my mouth towards her breasts and run my tongue across her left nipple, while I continued to run her right with my thumb. She let out a series of light moans as I alternated the movements of my tongue, switching between breasts at random so she never new what was coming next.

After about half a minute of this I began to rub my free hand along her upper thigh, which she responded to by spreading her legs apart. I brought my hand up to her crotch, feeling the smoothness of her bare pussy. She was already dripping wet, enough that there was bound to be a stain on the bedsheets afterwards. I began fingering her while continuing to run my tongue around her nipples, and even though I couldn't see her face I had a suspicion she was biting her lip to keep from screaming out.

It only took a few seconds for me to abandon her breasts completely. When I pulled away she titled her head forward, and I responded by giving her a quick peck on the lips before pushing her onto her back. With her legs already spread apart I was able to put my face up to her crotch, taking in the strong scent of her pussy. I quickly ran my tongue across her folds, earning another moan from my older sister. I twirled my tongue around, using the same techniques I had used on her nipples earlier so she never knew what was coming. Sarah had started me on eating her out four years ago, and I always had to make sure to keep learning new techniques just to keep her on her toes. Luckily between her and Kayla I had practice several times a day.

I could feel her twitch each time I ran my tongue across her clit, and her juices ran out like a waterfall. Before long she had become so wet I had to come up for air periodically. I could tell by how much she was twitching and the moans she was making that she was about to cum. I took a deep breath and brought my tongue back in to make make one more pass over her folds and another flick of her clit. Her body convulsed as she came and, as if instinctively, her legs locked around my head, bringing my face in close to her cunt as she squirted her fluids into my mouth. Her orgasm seemed to go on for several minutes before she finally released her grip around my head. With my head free I was able to come up for air, and I could hear Sarah giggle as I took in a few deep breaths.

"You've still got a master tongue little bro,"

I licked my lips, "Lot's of practice sis."

"Well get up here, I've got a little practice I wanna apply to you."

I got myself up onto the bed and was immediately pushed onto my back as Sarah lowered her head down to my cock, taking my whole length down her throat.

"Three blowjobs in one day? Must be my birthday," I chuckled as she bobbed her head up and down.

Sarah released my cock from her mouth with a pop, "Well I know you like them. Plus I figure the more I make you cum the longer you'll last inside of me." She immediately returned to sucking my cock.

I couldn't argue with that logic; and I did love blowjobs, sometimes as much as actual fucking. There was just something so satisfying about a girl selflessly taking your cock into her mouth just to make you feel good, especially if she swallowed, which Sarah and Kayla often did. I laid my head back and closed my eyes as Sarah deepthroated my cock, bobbing her head up and down.

"Ya know," I called out without ever lifting my head up, "There's a way to make me cum faster."

Sarah giggled with my cock still in her mouth, before releasing it once more. I felt the bed move as she shifted around. My legs were suddenly pulled on and I soon found myself sitting at the edge of the bed as Sarah had been earlier. With my cock still erect in front of her and Sarah now standing in front of me, she knelt down just slightly; taking my member between her breasts before putting the tip in her mith once again. When she didn't move, I took the initiative and began thrusting my hips forward, fucking her tits and mouth. Soon she stopped doing work altogether, and I was free to go to town on her face. It only took a couple of minutes before I could feel myself cumming, and right before I blew my load I grabbed the back of her head and forced myself deep down her throat. I could hear the sounds of swallowing as I came into her throat. As soon as the last of my cum had been drained out, Sarah jumped back on top of the bed and pulled me in for another kiss.

"Mmm, that was delicious. Thank you little brother."

I stroked her across the head, "My pleasure sis. Now I believe I have reservations for a pussy."

Sarah laughed, "Yes you do. What position do you want to do?"

"You be on top for a few, I wanna rest a bit."

Sarah nodded and straddled my legs, as I laid myself back down. She slowly lowered herself down onto my cock and soon I was engulfed in the warmth of her cunt. I closed my eyes and crossed my arms behind my head in a relaxed position, as Sarah began slowly moving her hips up and down. I didn't bother moving hips at all, at least for the time being, allowing her to move at the speed she wanted. Whenever we had sex she always liked to start out slow because she claimed it allowed me to hit her g-spot just right. I had no idea if this was true or not, but I enjoyed the slow pace nonetheless. My cock was slowly squeezed, inch by inch as she lowered herself down, then relased inch by inch as she raised herself up. Going this slow also allowed the inside of her cunt to carefully rub across my length.

Two minutes into it, Sarah began moving a bit faster. I still kept my hips motionless, but I took my hands out from behind my head and reached my arms up to fondle her breasts. She bit her lip as I grabbed them, and continued moving just a little bit faster. After having already came three times that day, I was at no risk of finishing too early, but the highly satisfied feeling was constantly there. It was the feeling you get just before you're about to cum, and I was able to enjoy it for much longer than normal.

"H-how are you doing Humph?" Her voice quivered as she spoke.

"I'm doing just fine Sarah. You doing alright?"

She had to take time to catch her breath as moved up and down, "Y-yeah, I just...just need to relax.. for a bit."

I could see that she was getting tired, but the continuous movement indicated she had no desire to stop anytime soon. Taking the initiative, I lift my upper body up from the bed and grabbed my sister by the waist.

"Alright, up we go."

"Wait, what are we..." Sarah let out a small yelp as I flipped us over. With her now on her back, she was able to relax, and I took up all the work. I continued going at a fairly moderate pace, letting her enjoy it just as much as I was. She was so wet at this point that it began taking extreme control to avoid plowing into her with every thrust. Our breathing had quickened and sounded similar to rapid panting. Sarah's face was red and glistening with sweat, and I was just starting to feel perspiration dripping down my forehead. I put my hands on here shoulders to hold myself up, using them as leverage as I continued thrusting into her.

Eventually, I became too tired to continue going as slow as I was, and proceeded to let the wetness of her pussy force my cock in and out more rapidly. My older sister began letting out louder and more frequent moans I trusted deeper and faster into her. I felt the walls of her vagina contract, squeezing my cock as she had another orgasm.

"H-Humph... a-are you..."

"Yeah, I'm getting close." The extra squeeze was just the simulation I needed to push me closer to orgasm.

"Cum inside me little brother. Cum inside your big sister."

That did it for me. That always did it. Whether with Sarah or Kayla the phrase "cum inside your sister" always pushed me over the edge. I gave one final thrust as I unleashed my load into my older sister, my body pulsating as I came.

I must have been completely exhausted after that last orgasm, because the next thing I knew I was waking up on top of Sarah, my head resting on her breasts. Stretching my arms out, I sat up to see Sarah, awake and on her phone.

"Hey sleepy head," she giggled as she ruffled my hair.

"Hey you," I leaned forward to give her a kiss. "How long was I out?"

"Close to two hours. I thought you had better stamina then that."

"Hey! That was my fourth one of the day, and I was up pretty late last night."

Sarah began giggling and I couldn't help but laugh along. I lowered my face back down towards hers and kissed her again, gently parting her lips with my tongue and making out with her for close to a minute.

"It was fun, though," I whispered into her ear.

"Yes it was. Which is why I wish I didn't have to cut you off for awhile."

I did a double take, trying to make sure I heard her right, "Cut me off?"

She nodded, "Johnathon and I have been thinking of having another baby, so I'll be going off birth control soon." Now I understood.

"What if I want to give you my baby?" I questioned teasingly, as I ran my fingers along the lips of get pussy.

"Mmmm, honestly I wouldn't mind that Humph, but some other time."

I gave her a quick peck on the lips and laid my head back down on her chest. We laid there in silence for a minute or two before I said the first thing on my mind.

"Kayla and I have been talking about having a baby."

"Oh?" I could tell she was genuinely interested in what I had to say.

"Yeah. And not like, in a few years or anything, but like now."

I felt Sarah running her hand through my hair, and I could practically hear her thinking about what she was going to say next.

"Look Humphrey, we can't stop you two but doing that if you really want to, but I want to make sure you really know what you're getting into. You're still in high school, and Kayla's only 13. Not to mention she'd have to completely make up who the father is, and that could fall apart disastrously."

I nodded, "And we know that, it's just something we've been thinking."

"Come on," Sarah brought her head down and kissed me on the forehead, "I've gotta go get dinner started."

"Good, I'll need to replenish all the energy you've drained out of me," I said with a laugh, swatting her on the butt as she stood up.

We both walked out of the bedroom, Sarah heading towards the kitchen and me back towards the living room. Kayla had stretched herself out on the couch, and she sat up as she saw me approach. I sat down next to her and gave her a quick kiss on the lips before laying down, pulling her close to me and wrapping my arms around her waist.