The Power of Blackmail Ch. 03

"Fuck! I'm going to cum sis! I have to pull out!"

Louise pulled my head back down onto her tits and held me tighter than before.

"No! I'm going to cum too! It's fine, don't worry! Fuck! Ohhhh fuuuuck!!!"

Even if I could pull out, I wasn't sure if I wanted to. Hearing her give me permission was all the reason I needed to do this. My cock doubled in size as my balls began to tighten. At the same time as I stretched her walls, Louise clamped down, causing an impossibly tight last few pumps.

"ARGHHH! FUCCKKK!!!"

I came. Shooting my semen deep into my sisters insides. The waves of spunk shot out of me and into her with such force that I nearly blacked out. Halfway through my ordeal, I felt my sister cum too. Her pussy began to throb, her nails dug into my back and her body started to spasm.

"OH MY GOD!!! RYANNN! I'M CUMMING!"

After what felt like hours of spraying my liquid into Louise, my pulses came to a stop, and soon all that was left was my still hard dick throbbing as my sister fought through her own orgasm.

I had finished, but surprisingly Louise was still going. Her body jolted every time I tensed my cock. I decided to latch myself back onto her nipple for a while longer, along with grabbing at the other one with my hand.

"Fuck master! Stop! God... Stop! I-I'm going to black out..."

I grinned while sucking on her tit. Then I pushed my slightly smaller prick in and out of her a few times, just for good measure.

Finally it looked as though her orgasm had faded. At this point I was mesmerised by her. Never had I seen a woman be that effected by an orgasm. If I hadn't been basically holding her down against the bed, then she would have been flailing all over the place.

"That was... fuck..." I lifted my head up and climbed over her bountiful chest to greet her face to face.

"Yeah... that was... fuck!"

One of my hands continued to fondle her chest as the other made its way up to her face. We were both panting like crazy. It may not have lasted long, but it had made one hell of an impact.

"Umm, R-ryan?"

"Yeah?"

"Was... was that ok? Did it feel, good?"

I couldn't help but laugh. "Yes Lou. That felt, amazing."

"So... we can do it again?"

"Are you for real? Wait, do you mean right now or just in general?"

"Uhhh, well either, I guess..."

"Pet, I can assure you, we are definitely doing that again."

Louise smiled a gleeful smile and then pulled me in for a kiss. I couldn't think of anything else I'd prefer to do than fuck my little sister again. More and more. Over and over again until we passed out.

"Wait! Lou, is it safe? You know..."

"Oh! Yeah! I'm on the pill, don't worry."

"Oh thank fuck for that!" I gently pulled my receding member free from his new found home and flopped down onto the bed beside my sister.

"Aghhh!! Louise shouted.

"What! What's wrong?"

"Uhh, it's uhhh. Ummm, I think it's coming out."

"Ohhhh! Just clamp your legs together." I laughed as I realised this was her first time having this happen.

"Don't laugh! I didn't know it came out!"

"Haha! Yeah, most of the time in fact. What's wrong? Don't like your brothers cum trickling out of your naughty little pussy?"

"I-I uhh, it's not that I don't like it. It just caught me off guard. I'll be right back..."

Louise hopped off the bed with her legs locked together and waddled out of the room, presumably making her way to the bathroom. In the meantime, I cleaned myself up using my boxers and started to jerk my cock back and forth.

It wasn't normal for me to be able to recover so quickly, but my sister was hot, and what I just experienced was beyond hot. I knew that it wouldn't take me long to get hard again. I had an idea, and I needed to be hard to pull it off... Hah!

Just as I had predicted, with what I had in mind, it wasn't long until I was at full mast once again. Not quite as solid as before, but more than enough to get me going. I followed my pet of a sister down the hall and found the bathroom door open. She had her back to me as she leant over the sink.

It looked as though she had nearly finished cleaning up. "Perfect timing." I snuck up behind her with my hand on cock, preparing it for another adventure. I slid my erection between her legs, ran my hand around her front to cover her mouth and the other grabbed hold of her heavy breast in one quick motion.

"Mhphmmm!"

Completely caught by surprise, Louise jumped as I grabbed hold of her. Immediately my cock started to jerk between her thick thighs. Our mixed juices still not fully wiped away helped me with lubrication. I grabbed a handful of her breast and put two of my fingers in her mouth for her to suck on, which she hungrily did as I wanted.

"We're not done yet you naughty little slave. Bend over!"

Louise did as I demanded without a second thought. Her hands locked onto the sink in front of her, her eyes fixated on the mirror to watch me as I dominated over my possession. She spread her legs and hunched over the sink slightly, just enough for me to get my prick back into position.

I pushed forward, pounding my rod deep into her slick hole. I moved my hands onto her hips and began a slow rhythm as I fucked her from behind. It was another slow start, I liked to enjoy the first few moments of sex as a sort of trail run. A moment I can mentally picture for later, just before I fucked a girl senseless.

I looked over my sisters shoulder into the mirror and saw the blissful expression she wore. I could tell she was loving what was happening. 'Smack!' I brought one hand down onto the roundness of her ass cheek.

'Smack!' Every spank was harder than the last. 'Smack!' And every time I did so, Louise's legs buckled slightly, like she was being consumed by a small spontaneous orgasm that lasted a split second. 'Smack!"

"Fuck! Fuck! Ryan!!! Spank me harder master!"

'SMACK!!!'

"OOHHHH!!! FUCKKK!!! YESSS!!!"

My erection was once again at it's peak performance. A solid lump of mass, barrelling itself deep into my younger sister. With every spank, came a powerful moan from her lips. With every moan, came a shudder of pleasure. There was no way she would out last me this time.

'SMACK!'

"Fuck me Ryan! I-I think I'm going to...C-CUMMMMM!!!!"

I pulled my sisters back against me and grabbed hold of her breasts. I watched her in the mirror as her body spasmed for the second time today. Her pussy convulsed on my prick like shots of electricity was passing through her.

"Do you like it when your big brother makes you cum?"

"OHHHH FUCKKK!!! Yessss, yesss.I do Ryan! Oh god I do!"

After another eternity of my sister spasming uncontrollably, I held her body close and enjoyed fondling her while she did. I knew I'd never get bored of squeezing her melons, and likewise fucking her every chance I got. That was going to be my new favourite thing.

Louise finally calmed down, so I decided to carry her back to the bed. It was like trying to carry a bag of water, she was so flexible and relaxed that I found it difficult to do so effectively. The moment I got to the bed, I threw her down.

"Doggy style. Now!" I could have easily left it at the bathroom, but I wanted more. And I was going to get it.

Louise responded to my words as best she could, rolling over and kneeling onto all fours for me. Her ass was so peachy and perfect that my cock twitched at the very sight of it. However, I could tell she was beginning to show signs of exhaustion. It was technically her first time after all.

"Ready to go again Lou?"

"Holy shit... hhhuuu, hhuu. Yes master. U-use me. Use me as much as you like."

I grabbed hold of my package and slid it back inside my sex pet sister. Her back immediately arched as I started to barrel my way into her womb. I could feel how deep I was going, and from her bodily reactions, she knew too. It was the furthest I had been yet.

"Ohhh!! Fucking hell masterrrr!!!"

'Smack!' I spanked her ass for several minutes as I fucked my way into her pussy. 'Smack!' It wasn't long until her cheeks were raw with jarring red hand print marks. 'Smack!' I knew she wouldn't be sitting comfortably at the dinner table tonight.

I grabbed hold of both of her arms and pulled her back into me. The more I pulled on her arms, the deeper my cock went, and the deeper it went, the more powerful her moans became. Soon she was almost horizontal as I fucked her from behind.

"Rrghh! Fuck you're still so tight sis! It feels like I'm ripping you apart."

"Ohh godd! Ryannn. You feel so fucking good inside me. Oh my god!!!"

I could see the side of her tits bouncing chaotically with every thrust. A moment later, I was about to cum. I let go of her arms and reached around to grab both her neck and one of her tits. I held onto her tight as I let my seed penetrate the deepest parts of her pussy.

"I'm cummmming!!!" Ohhhgghhh!!!!"

The globs of spunk shot fiercely from my prick. The pleasure of fucking my own sister heightening the experience to a new level. It was, perfect.

After I had finished. I let go of my grasp and Louise fell to the bed in a hot sweaty mess. My dick slipped straight out of her as she fell, and then it hung down between my legs, glistening with our sex. Louise was breathing heavy as she rolled over to look up at me.

"I-I'm sorry master. I tried... to b-be a bit... more active. B-but I'm so... tired. I c-can't even think straight."

"That's ok Louise. You did an amazing job... That was your first time after all. I'm incredibly proud of you."

Louise looked up at me with such a smile on her face that I thought she might cry, but it looked like she managed to hold back.

"T-that was... so unbelievable Ry. I can't even... fuck..."

I slumped down on the bed beside her and pulled her over to me.

"Yeah. That was... wasn't it?"

"I knew... that I wouldn't regret it, but I didn't expect it to be... that good."

"Haha! I know what you mean. You're job isn't finished yet though."

Louise looked at me with curiosity.

"You still have to clean me off, down there."

Suddenly she remembered her place as the slave. "Oh, yes master. But do you mind if I catch my breath for a moment. I'm not sure if I can even move my body right now."

She didn't seem to mind what I just told her to do. She's sucked my cock before, but not just after it being inside her. Did that mean she's tasted herself before? Maybe even like it? I was probably just getting my hopes up.

"Oh, sure. Take all the time you need. We have all day." I grinned.

"Thank you master." Louise looked at me like she needed to ask a question. "Umm. Ry... I mean, master?"

"Yeah, what is it?"

"Was it... Ok, for you? I mean, I don't really know what's good or not, but I know I liked it. A lot. D-did you?"

"Louise, don't be so worried. That was amazing, really. Far better than I've ever had before. Maybe it's because it's you, my sister, or maybe because you're just that fucking hot. I don't know, but either way. That really was fantastic sis."

"Really?!" She looked so happy. Like she had just found out it was Christmas Day or something. "I liked it too Ryan. I-I, loved it. And I think... I think I love you too."

"Wait what?..." before Louise could answer, she dropped down the bed and sucked my soft member into her mouth. "Ohhh, fuck yeah!"

A few very wonderful moments later, Louise emerged from heaven and joined me back up on the bed.

"Phew! That was, good!"

"Is that ok? I think I cleaned it all up."

"Yeah, that was great. D-do you mind, you know, tasting yourself?"

"Haha! Not really master. I've tried it before. It doesn't really taste like anything to me. I don't mind one bit."

She was on her way to being considered a good girl with the way she's been talking. I'll have to remember that in future. I wanted to bring up the whole, Isabel thing with her, but I wasn't sure if it would be a good idea, especially since she just admitted to being in love with me. I would have to bring that back up at some point, but for now I needed to test the waters.

"Louise. How do you feel about me having sex with other women?"

She looked at me for a moment, a stare full of curiosity and confusion.

"You mean, whether I object to it or not?" I nodded in response. "Of course not. I can't keep you all to myself. And besides, I'm your sister. It's not like we can be open with all of this. You can't just not see anyone the whole time. It would look suspicious."

"Oh! So you don't mind then?"

"Well, in a perfect world then it'd just be me and you, but I'm a realistic person Ry. I don't expect you to lock yourself away for me."

I had to respect what she said. I couldn't say for sure, but that couldn't have been easy for her.

"Thank you for saying that Lou. I'm not entirely sure where we go from here, but there is a reason why I asked you that question."

Louise didn't speak, she just laid there waiting for me to continue.

"How do you feel about me and Isabel doing the same thing we just did?"

"What! B-but, she's your sister..." It took her a moment to realise. "Oh, I guess I shouldn't be that shocked. Ummm, I mean, it sounds a little strange to be honest, and..."

"Yeah? What?"

"Well, Isabel isn't exactly like me you know. If I didn't want this, then it probably wouldn't have happened."

"B-but, I blackmailed you into it. Are you telling me that if you didn't want this..."

"Yeah, probably. I would have let you tell everyone about me taking your money. However, to keep it secret, I still would have let you jerk off onto my face, or given you a blowjob, but that would have been it."

I was completely surprised. I guess I wasn't as evil as I thought I was. Here I thought I basically seduced my little sister into these acts.

"So what you're saying is, if I want to take things to this level with Isabel, I'll have to be more... forceful?"

"I can't say I'm exactly on board with hearing that you know, she is also my sister too, but... I guess I am still your slave so, how would you do it?"

"Hmm, that's the thing. I can't straight up just barge down her door and push her down. It has to have more... finesse than that. Do you know anything about her I can use, you know, as leverage?"

"Hahah. Unfortunately for you, I can't think of anything, but I'll have a think later on."

We stayed on the bed for about another half hour or so. I made Louise get changed in front of me. It was a pretty satisfying watch, especially seeing her wobble on one leg thanks to shaky knees. I told her she might want to stretch or go for a bath. I assumed Isabel would pick up on Louise's symptoms otherwise.

After a quick wash and a change into clean clothes, I decided to go for a wander to the old slate quarry with my camera. Louise took my advice and ran a bath. The redness of her ass was only worsening as the minutes ticked by. She would need the soak to help with the pain.

The rest of the day went quickly. I managed to take some fantastic shots of the discolouration of slate, and I even found a Peregrine Falcon nest in amongst the slate cliffs. Even with such amazing photos, I couldn't help but want to take some more of Louise. I regretted not taking one of my hand print on her ass the most. I'd have to do it again and add that little trophy to my file.

- Later that day -

It was once again one of my favourite times of day. Dinner time! Me and Louise had been sneakily fooling around since I came home. A grope here and a kiss there. It was exhilarating to say the least. We both grabbed at each others body before making our way down to the dining table.

"Smells like Isabel's cooking again..."

"Ah! See that's where you're wrong my little slave," I spoke quietly for the most part. "Izzy doesn't make anything that smells like that. I bet you... one striptease... that its mums cooking."

"Hah! You're on loser."

We both ran down the stairs and into the dining room. And, just as I thought, I was right.

"Fuck!"

"Louise!!! Watch your mouth young lady!" Shouted Patricia.

Patricia is my mother. She's always been fairly easy on us, but she will bring the hammer down if she has to. Usually on Louise, which from my point of view is hilarious.

"Sorryyyy."

I smirked in my sisters direction and took a seat. The rest of the family hadn't turned up just yet, so Louise took the opportunity while our mothers back was turned and slowly sat down.

"Hey... Loulou..." I whispered our family's pet name. "Sore? Are we?" I smirked again, knowing I was the cause of her discomfort.

"Haha. Very funny," Louise also whispered across the table. "And for your information, yes. Yes I am."

"What are you two plotting huh? Anything exciting?" Patricia had heard us whispering.

"Something very exciting actually mum. Don't worry. I'll take plenty of pictures, to be on the safe side."

Louise kicked me under the table in a grump. I had to stare her down in a domineering gaze to get her back to being the obedient little slut she now was.

Our father soon joined us at the table, then Isabel. The next target. I realised then that I was definitely a bad person for targeting both my sisters to act in such inappropriate ways. If there is a hell, I was definitely going to it. But before all of that...

Spaghetti Bolognese, my favourite. It took all of ten minutes to scoff down the entire plate and then a second smaller plate. Once we had all finished, I decided I wanted to watch Louise struggle to walk away from the table. Only then did I go to my room.

I didn't have much else to do, so while in my room I started watching a movie to pass the time. I was dying for it to be another day of just me and Louise, however it turned out tomorrow was Saturday. Which meant everyone was going to be home.

Less than ideal sure, but I guess it gave Louise a chance to "heal" which of course meant I could absolutely go to town on her next week. I found myself mostly ignoring the movie and daydreaming about Monday. Then I got a message from none of other than my pet.

"Hey. I just remembered something. Want me to come in? X"

It was the first time she had sent a message with a kiss on the end. I kind of liked it.

"Are you sure it's not me who should be... coming in?" It wasn't funny at all. But that was my sort of humour.

"Oh god..." Following this was a rolling eye emoji, which made me laugh harder than I'd ever admit. "Never mind, I'll cum to you... x"

First ever slightly naughty text with my sister. Right then I knew I was going to pound one out to her pictures later.

Louise stealthily walked into my room, sat down on my bed beside me and brought her lips to mine. It was more of a rush than I thought it would be to have her on my bed like this.

"So, I remembered something, but it's not much. Probably nothing really."

"At this point, anything will do. Did you see Isabel's cleavage at dinner? Phewww, I need me some of that..."

I laughed which then brought me a slap across the chest. From her face it seemed she wasn't impressed, but there was something in her frown that hid the small semblance of a smile.

"Anywayyy. About a year ago me and Izzy started talking about school and college. I brought up her university because I was curious about what it was like when we weren't there. At first she was a little bit... distant about it, but when I asked about her degrees, she avoided the subject completely."

At first I didn't think she was telling me anything worth while, but then I suddenly remembered the night before, and how I noticed she didn't have her uni friends on facebook. The more I thought about it, the more I wondered if something had happened while at her university.

Louise continued. "I thought it was strange, so a few days later I asked her again. Nothing. Then a few weeks later I brought it up with mum and dad around. Not only did she not answer again, she immediately changed the subject. After that I stopped asking, but it always bugged me."