[Part 1, ](https://www.reddit.com/r/incestsexstories/comments/tc9pfj/love_pill_part_1/)
[2, ](https://www.reddit.com/r/incestsexstories/comments/tcz36r/love_pill_part_2/)
[3, ](https://www.reddit.com/r/incestsexstories/comments/u5q4vk/love_pill_part_3/)
[4, ](https://www.reddit.com/r/incestsexstories/comments/ukykd8/love_pill_part_4/)
[5, ](https://www.reddit.com/r/incestsexstories/comments/v04w7j/love_pill_part_5/)
[6, ](https://www.reddit.com/r/incestsexstories/comments/vbt2av/love_pill_chapter_6/)
[7, ](https://www.reddit.com/r/incestsexstories/comments/vp12no/love_pill_part_7/)
[8, ](https://www.reddit.com/r/incestsexstories/comments/w5f4ag/love_pill_part_8_12/)
[9, ](https://www.reddit.com/r/incestsexstories/comments/wgun0z/love_pill_part_9_12/)
[10, ](https://www.reddit.com/r/incestsexstories/comments/wt6d4c/love_pill_part_10_12/)
[11, ](https://www.reddit.com/r/incestsexstories/comments/wzv44c/love_pill_part_11/)
**Chapter 12**
Ava led me out of my room.
Thank god we didn’t bump into Lucia outside. A threesome with my sisters would be the ultimate experience, but with the mood they were in, I doubt I could have both of them in the same room with me, much less the same bed.
I would just end up sleeping alone.
Ava led the way, clutching my hand tight, almost dragging me along. She was getting a little feisty, but this was one of the few moments I didn’t mind her taking the lead.
I could stare down, mesmerized, as she swayed her ass in that sultry sashay. I was pretty certain she wasn’t doing it for my benefit. She didn’t even know I was gawping at those amazing cheeks. It was just something both my sisters naturally did to draw men’s eyes in. And oh boy, the strategy was a hit everywhere they went.
Ava tugged me past her door and slammed it shut, clicking the lock.
I missed being in her room. Not only was it immaculately clean—I have to give Ava credit for her maturity there—her pink palace had an amazing fruity smell.
It was a mix of peaches, watermelon, and a slight hint of mandarin. Combined with her sweet scent and her salty sweat from being freshly fucked, it felt like I had entered the gates of heaven.
“Come on.” Ava pulled me to her bed, which was filled with fluffed up pillows and stuffed bears.
I perched on the edge, expecting my little sister to climb on with me, but she stood there, eyeing me.
“I will go get ready in the bathroom. Give me ten.” She tilted her head cutely, splaying beautiful pink hair over half her face. “Do you want me in a particular outfit for tonight?”
Fuck yes.
I nodded, not being able to hide my excitement anymore—or my horniness.
“Your school uniform. Toss the blazer. Keep everything else. Bow, blouse, skirt. Don’t wear socks or shoes and keep your hair secured in a high ponytail.”
Ava blew out a breath and I could tell she was resisting rolling her eyes. I must have been the first person ever to talk to her like that.
“Yes, Master,” she replied instead, almost sarcastically, forcing a smile that melted my heart even though it was strained at the edges. “Wait here.”
I watched my sister sway her ass as she walked towards her bedside drawer, taking out a lube bottle. She retrieved her school uniform from her walk-in closet before disappearing into her ensuite.
While my sister followed her orders, I laid in her soft, comfy bed, next to all her stuffed teddies, reviewing what just happened and contemplating what I would do and say once she stepped out.
I was being risky telling her to don her school uniform. It was my kryptonite. Every touch from her was lethal, but I had to try my best not to prematurely ejaculate, especially, *especially* when I was going to take her anal virginity.
I had to remember the one rule we were playing. If I lost control, Ava would devour me alive. A tame lioness had to constantly be kept in check.
It was taking longer than ten minutes, which was expected when it came to my little sister. I grabbed her favorite stuffed bear, Mickey, her teddy that I gifted to her when we were little and much closer before our eventual rift.
The more the minutes passed, the more my confidence leaked away.
I looked into Mickey’s eyes.
“Maybe it was a mistake telling her to wear it,” I muttered to the teddy, feeling crazy for conversing with an inanimate toy, but I was bored out of my mind. “What do you think?”
Ava’s sweet voice carried through the room. “You can punish me, but leave Mickey alone.”
My cock returned to life. I sat up, glancing at my little sister, all doubt in my head disappearing as I stared at pink perfection.
She looked even better than how I pictured her to be. If anyone would look at Ava right then, they would see an image of feminine innocence. An eighteen-year-old that had no right to be that fucking sexy.
Not me. I knew Ava way too well. I could catch the naughty glint in her blue eyes and the erotic way she sank her perfect white teeth into her bottom lip. Plump pink lips that were made to be kissed.
My eyes rove over her face, burning through all her perfect features before I flickered down to her chest.
“You are all buttoned up,” I told her, frowning my disappointment. Her tight uniform highlighted all her curves in the right places, but her breasts were hidden. “You don’t go to school like that.”
“If you want to see my boobies, big bro.” She took easy steps forward, almost in a sensual, practiced catwalk. “You have to unbutton me yourself.”
I was so close to cumming. Holy fuck.
I still couldn’t believe I was hearing all that filth coming from my little sister’s lips. Filth directed at me.
I steeled my breath and set the bear down, welcoming my sister’s embrace as she hopped onto the bed and crawled towards me. Immediately, I slipped under her pleated gray skirt and squeezed her ass, pulling out low moans as she leaned forward and captured my lips in a passionate kiss.
I wasn’t going to lie. Ava was a phenomenal kisser. Even though my sample size of kissing partners was my two sisters, I didn’t need to make out with other women to know how skillful she was. She was the reason I became pretty decent at kissing really quickly.
And it wasn’t just the way she sucked on my lips—all eager, yet gentle and loving. It was the combination of that and the soft whimpers that rolled out of her when I kissed her back, and the way her body curved into mine, the way her fingers clutched my arms, nails biting into my skin. The way she parted her lips to open up for me as I slipped my tongue through and sparred with hers.
I was perfectly content with just making out with her. It was that fucking good. But I knew that if I continued kissing her, losing my composure and cumming right then was a real danger.
Eventually, after a few more bruising licks and heated pants, I drew back, much to her dismay.
She frowned and tried to pull herself back to my lips, but I stopped her, gripping her shoulders.
“Kiss me.” She pouted. “We’re not done.”
I tried to conjure a reason for my sudden withdrawal, other than, ‘I was so close to cumming just from our kiss.’
“You stopped addressing me properly.”
“Do I really need to call you Master for the entire night? “
“That’s the deal, little sis.”
She huffed, trying to go for the kiss again, which I promptly denied. I still couldn’t believe I was rejecting her advances.
“This is such a shitty deal. I have to bend to your will, call you Master, then allow you to take me up the ass? It’s all favoring you.”
“I ate you out just now, didn’t I? Maybe I will give you another reward if you’re a good girl.”
“So mean.” She pushed her bottom lip out. “Whatever. My hole is already cleaned and lubed up. Do you want to fuck now?”
“Hmm.” I pretended to think, trying not to stare at my sister too hard. Fucking hell, she looked so hot in a ponytail. It made her elude a radiating elegance. “Do you still have your pink ball gag?”
“Why?”
“I ask you a question, Ava. It’s either a yes or a no.”
She sighed. “Yes, I do.”
“Fetch it.”
Ava looked at me. I didn’t know what she was thinking, but after searching my eyes for several seconds, her warmth left me and I was left staring at her swaying ass once more. She walked towards her walk-in closet, disappeared inside, then came back out half a minute later with a bright pink silicone ball gag.
She knew what I was going to do with it, but she hopped back into bed, resting on her knees in front of me and handing me the toy.
“Good girl,” I said.
My sister must be getting used to the praise. Because instead of complaining about it like the first time, she just shot me a cute frown.
“Here’s what’s going to happen.” I scooted towards the edge of the bed and patted my thighs. “You’re going to lie across my lap and take the punishment like a good girl you are.”
“You can’t be serious, Aaron.”
“Ava,” I snapped her name out and was delightfully surprised when she recoiled back.
“Master.” She sighed. “I’m sorry. But this is too much. Don’t you see how degrading this is for me?”
“You promised you would submit. And what better way to show your submission than doing this?” I paused. “Besides, you’re a brat. You know you are, and I need to instill some long overdue discipline in you.”
My sister grumbled, but she did what she was told. Crawling next to me, she shot me a glare before sighing and bending down, lying across my erection, purposely shifting herself so that her heat was grinding against mine.
I swallowed my groan, closing my eyes for several seconds to not break composure. Fuck, this was hard. My sister was such a fucking tease.
Reopening my eyes, I surveyed the gorgeous landscape of my sister’s body.
“Don’t hit me too hard,” Ava snapped with surprising venom, but I knew she was just uncomfortable with the situation I put her in, trying to hide her nervousness with anger.
“Maybe I will, maybe I won’t.” I rubbed patterns over her left ass cheek, drawing out the anticipation of what was about to come.
“You really get off on this, don’t you? Humiliating your little sister?”
“Someone needs to bring you down a peg or two, Ava.”
Or maybe ten.
“You’re really getting off on this. I can literally feel your cock jerking.” She huffed. “Whatever, just get this over with.”
“I want you to count off each blow, dear sister.” I slipped my index finger in between her crack, fingering the outskirts of her forbidden hole. She gasped and twisted. “Do you understand me?”
She whimpered.
“Ava.”
“Yes, Master.”
“Good girl. Now open your mouth wide and nice.” I grabbed the ball gag and hovered it in front of her lips. “Open up.”
“How the hell am I supposed to count if I’m gagged?”
I shrugged, even though she couldn’t see me. “Just make a sound. I don’t care.”
“Fuck me,” she muttered. “The things I do for love, huh, Master?”
She stretched her lips wide, and I quickly restrained her, securing the gag and making sure it wasn’t too tight.
“You good?” I asked my bound sister. “Comfortable?”
She nodded again.
God, what a sight. Gagged, with drool already pooling at the edge of her full lips. Pink ball, pink hair. Such a perfect combination.
My sister shifted, rubbing her tight pussy against my cock even harder. I groaned. My sister giggled.
Naughty, naughty girl.
I didn’t give a warning when I spanked her. She was still playing her game, trying to slip my cock inside her, when I brought my palm straight down, smacking her left cheek through her uniform skirt. The sound darted across her room, her cheeks jiggling from the impact.
“MHMM!” Ava jerked forward, but I was ready for that response, pressing my other hand down her shoulder blades, feeling her lean muscles there contracting.
“Ava…” I didn’t hit her too hard, but it was enough for her to grow serious and stop her playful attempts. “You didn’t count.”
“Mhmm! Mmm!”
Was that a one? Maybe I shouldn’t gag her, but the thought was too fucking hot to pass up.
“Here’s number two, baby.” I rolled her skirt upwards and drew my palm back, slamming against the same reddening cheek, causing my sister to scream in her restraints.
“MHMMM!”
“Ava, count.”
“Mhmm!”
“Good girl.”
I admired the faint handprint on her luscious bottom, but Ava was moving so much it was hard to appreciate my work.
“Stay still.” I drew my palm down to her lower back and applied pressure.
When she fought back and tried to struggle away, I delivered a thundering blow to her other ass cheek. I might have been too excited and hit her too hard because even though her screams were muffled, they were ear-piercing.
Ava rolled off my thighs, and I realized she was tearing up when she glared at me from the ground.
She quickly unbound herself. “What the fuck, Aaron? Are you insane or something? I told you not to hit me so hard!”
“I might have been too harsh.”
Droll was leaking down her chin, and I watched it as it seeped to the ground. “You’re fucking crazy! Maybe we shouldn’t do anal. You would just hurt me.”
“Ava.” I patted the spot next to me. “Sit.”
I expected her to resist, but miraculously, after some grumbling, she stood up and sat next to me.
Taking her chin, I looked at her blue eyes. “I admit I was too hard. I’m sorry. I’ll be gentler.”
She looked away. “I fucking hate you.”
“No, you don’t.” To prove my point, I pulled her into my lips, and was greeted by a sigh and a low moan when we touched lips.
I played with her nipples while we kissed. They weren’t as hard as I would like them to be, but after some pinching and fondling, her buds beaded tight.
Pulling away, I nodded towards her stack of pillows. “Get on all fours. It’s time.”
“Don’t break my trust, Aa—Master. Go slow. Don’t be cruel.”
“I won’t.”
“Can you help me transfer my teddies back? I don’t want them to get… you know… dirty.”
“Of course.”
A minute later, we were back on the bed.
“You’re so fucking hot, Ava.” I reached over and popped out her top button. “Especially when wearing this.”
“I always knew you had a thing for schoolgirls.”
I paused at the second button. “How?”
“You always had an erection when we were eating breakfast together.”
The second button came loose. “I should have been more discreet.”
The grin she gave me stilled my heart. “Not with a cock your size.”
The third button popped out, revealing a good portion of her breasts. I could have undone the rest, but having her breasts partially exposed rather than fully was hotter.
“You’re going to have anal with this innocent schoolgirl.” She sing-song the words and blinked her long, dark lashes at me. “How do you feel?”
“Ava, stop.” I closed my eyes and resisted the urge to blow my load, but yet again, I wasn’t discreet enough.
A stream of pre-cum leaked out of me, to my sister’s delight. She giggled and collected my arousal using a thumb before bringing her digit back to her mouth, sucking on it as if it were a lollipop.
“You like me acting out as this innocent little girl, don’t you, Master? You want me weak and submissive.”
“On all fours.” I gave a gentle tap to her ass. Ava smirked, winked sexily then turned around, assuming position.
My heart was a battering ram under my rib cage, my head lightheaded with lust. I lifted her school skirt, exposing her stretched out pussy, all pink and inviting, but I had to ignore it for the next half an hour because I desperately want to fuck her ass—and it wasn’t just to have my curiosity sated.
It was the ultimate move to complete my domination over her. No one else had been inside that forbidden place because none of her exes could tame my sister. Once I break that barrier, we would form an unyielding bond together, one deeper than just being siblings.
I gripped her ass cheeks and spread them apart. Ava assisted me, leaning against the stack of pillows and bringing her hands backwards, holding her cheeks in place as I shifted forward, edging closer and closer to where I needed to be.
“Go slow,” she reminded me. “Please go slow.”
“Don’t worry, little sis.” If I thought her pussy was hot, her ass was radiating, almost burning the tip of my cock as I pressed myself against her crack, groaning.
“I…” She exhaled. “I’m scared.”
“Me too, love.” I shouldn’t have shown her vulnerability, but the overwhelming anxiety clouded my confidence. What I was about to do was different from all the sex we have done, all the positions we have tried. “Me too.”
“Fuck, this is going to hurt.” Ava buried her forehead into the pillow as I slowly rolled my way in, gritting my teeth as she clenched her cheeks around the head of my cock.
“Ava… relax.” I tightened my grip against her hips. “I—I’m stuck.”
She relaxed a little, and I could breathe again.
“Okay.” I inched deeper, and then the next thing I knew, I was stretching her snug opening, and the groan I elicited out of my sister sent me spinning.
“Fuck!” I spat the curse out as spikes of pleasure tore through me from the inside out. I thought I heard my sister whimpering, but the rush of blood in my head drowned out every and any sound. “Fuck! Fuck! Fuck!”
I had sworn my little sister’s pussy was the single most exquisite thing in the entire world. Nothing could have provided me more raw pleasure than when she was flexing around me, milking me for cum, whimpering out my name, telling me to ram against the hard spot she so desperately loved.
But I was too quick to judge. Because even though I was only an inch inside her ass, I felt like I was going to pass out from the sheer amount of pleasure bolting through me from head to toe, cock to balls.
Holy fuck.
“AARON!”
I could hear her muffled wails through the rush in my head, all throaty and unsteady. Even though she was biting down on one of her pillows, her shrieks were clear. I groaned.
I couldn’t go on any longer. Holy shit, there was no way.
*I can,*I screamed internally. *Yes, I can!*
Another inch forward. My sister shrieked again.
God, she was tight. She was so fucking tight.
Ava jerked forward, her hips coming up and convulsing, her cheeks flexing. I crushed my eyes shut, hoping I wouldn’t explode just yet, praying for another minute of shattering bliss.
I was going slow. Another inch deeper. Another whimper out of her. This time Ava took me in better, moaning me out as I stretched the dark place no one had ever been before.
In the mix of all the craziness, gratitude struck out. Ava gave me her ultimate trust, and I should never take my beautiful sister for granted.
“I love you,” I choked out, burying deeper, already more than halfway inside.
“I love you too,” she sobbed.
“Am I hurting you?”
She shook her head. “I… can… I can take it. You’re just so fucking huge.”
With a groan, I pushed the remaining length of my cock into her in the gentlest way I could manage. I slipped into her with relative ease, my little sister already stretched to her absolute limits.
Ava arched her back and ripped out a scream of pain and pleasure—but mostly pleasure. Fucking music to my ears.
“Ava…” I grabbed her chin and tilted her towards me. “Come here, my love.”
Ava was still teary-eyed, but she offered a small smile when our gaze connected. I leaned forward, pressing my heavy balls against her ass and taking her soft, whimpering lips into mine.
We both mutually went straight for tongue action. I slipped into her lips and our tongue met in a burst of warm heat. Vanilla flooded my tastebuds, but she tasted sweeter than all the times I had kissed her, and I had to wonder if this was what love tasted like.
I couldn’t go hard on her ass, so I directed every once of my aggression towards her lips and tongue while I offered slow, loving pumps in and out of her ass.
“This is the best night of my life,” I admitted to my sister as I left her tongue and licked every single corner in her mouth before returning to her when she whimpered for me to come back.
Ava didn’t bother to reply, too invested in our kiss. Her girly moans and needy whimpers were pure adrenaline for me, filling me up with a heady energy, making me kiss her deeper, tussle with her tongue harder, until I was forced away to gasp for oxygen.
*“Master.”* The word rolled off her swollen lips in a low, desperate whimper. We were gaining rhythm. I was pumping her while she met my every drive with a backwards thrust of her own, scorching me alive every time my balls slammed against the lower curve of her beautiful, plump ass.
“Ava.” She was still looking at me, smiling softly, her blue eyes filled with genuine love.
Love for her brother. *Me.*
“You…” She sank her teeth down into her bottom lip on a thrust forward. “Y-You can go harder, if you want.”
I stared at her, looking for signs of discomfort. “You can take it?”
“I mean, don’t kill me with the thrusts, but yes, I can take it.”
“Okay.” I nodded, immediately speeding up my rhythm, panting, the rush in my head starting all over again as I fucked her ass faster and harder. “Holy fuck, Ava.”
“Are you close?” My sister mirrored my rhythm perfectly. She really was the ultimate sex partner. She had her flaws, sure, but no one could say her physical appearance was anything but handcrafted by God himself, airbrushed to perfection.
And her flaws weren’t purely negative. If Ava loves you, she *really* loves you. She was possessive, needy, and the most clingy girl in existence. For some men, all those traits wouldn’t be a net negative, especially when the girl looked like Ava.
“Yeah.” My breathing was patchy. With every staggered, shallow breath, I was breaking apart, trying my absolute best to draw the moment out as long as humanly possible.
“AH!” My sister’s eyes glazed and her hips jerked forward when a thrust forward came a little too ambitiously. She moaned out a little whimper before funneling her attention back towards me. “Make out with me when you cum, okay? I want to be as connected with you as possible when you finally let it out.”
“Okay.” I closed my eyes, so fucking lost in her ass. It was so warm, still tight, and like her pussy, there was a hot little flex to it every time I drove in. “Ava—I’m going to…”
“Kiss me.”
I opened my eyes and leaned forward, seeking my sister’s vanilla lips. It was the perfect time because as soon as our lips connected, I broke with agonizing bliss.
“FUCK—AVA!”
My orgasm flared through me, exiting my spasming cock in waves of thick, white liquid—straight into my little sister’s ass.
I was roaring wild screams into her, which Ava swallowed, accepting my aggressive kisses, being exactly what I always fantasized her to be. My submissive cum dumpster.
As I spurted out another wave of cum, barraging into her depths, I thought about how much my little sister had changed over the course of a week. Not long ago, she refused to even look me in the eye because she was embarrassed that I was her brother.
Look at her now. She was calling me Master. She willingly allowed herself to get fucked in all her important holes. I had spanked her. I had done everything no brother should.
We had sinned over and over, and I suspect we would continue sinning for decades to come because no matter how much I fucked her, I would never, ever get bored with Ava.
It wasn’t just her awe striking beauty. Or her skills in the bedroom. It was the fact that I was completely in love with her, and my sister just admitted that she was head over heels for me too.
When I was finally done, shivering out the last fizzle of hot cum, a minute had passed and I could feel my semen leaking from her hole. With a groan, I pulled away from her trembling lips and withdrew my cock.
Ava slumped down onto the bed in a heat of heavy breaths and sweat. I dropped beside her, the first sign of exhaustion creeping in.
My sister shifted closer and melded her soft, slick curves against me.
“Did you enjoy that?” Her breaths skirted across my lips, making me shiver.
“Ava…” I brushed my hand over the back of her head and grabbed her pink ponytail, twirling my finger around it. “That was the best fucking sex we had ever done.”
She raised a brow, dripping light sweat from her forehead, looking completely fuckable. “Is anal that good?”
“You didn’t enjoy it?”
“I didn’t cum, did I?”
“Fuck. Sorry.”
“It’s okay.” Ava popped open the rest of her buttons, then pressed her breasts against my chest. Her nipples were still rock hard, and I groaned at the delicious contact.
“As long as you love it, I’m happy. We can do it again after I recover.” I caught the flash of her grimacing when she touched her ass. “I probably won’t be able to sit properly for a few days. No biggie.”
My sister was upset.
“Hey.” I sat up and looked down at pink perfection. “Let me make you cum.” I placed a hand on her thigh, on the spot right below her skirt, shivering at how soft her skin felt. “Spread your legs. I’m going to eat you out again.”
“Thank you,” she mouthed, spreading her creamy thighs. Her uniform skirt was so short, her pussy was fully exposed as soon as she stretched her legs out. “I’m all yours.”
“Ava.” I knelt down in between her thighs.
Her eyes were closed. “Hmm?”
“I love you. Never forget that.”
She didn’t reply, but I could hear a faint sob and feel her thighs trembling slightly.
“Don’t cry.” I dipped down and ran my tongue across her wet folds, licking up then circling her clit, sighing as her sweet flavor filled me up.
She choked a sob out and gasped at the same time.
“Just enjoy, okay, Ava?”
She nodded. I got to work.
[2/2](https://www.reddit.com/r/incestsexstories/comments/x4vtmk/love_pill_part_12_22/)
Source: reddit.com/r/Erotica/comments/x4vyec/love_pill_part_12_12