Chapter 8

When I awoke the next morning, I had calmed down a lot. I was still revolted by what I’d done, of course - I’d been so horny I’d let my pussy do the thinking for me ... so turned on, so eager to help that I’d done the unspeakable: I’d seduced my brother.

That was the worst part about it - I felt so bad for him. He’d come to me with a problem, not expecting his own little sister to be such a pervert. I was so sick - convincing him to fuck me, that since he was wearing a condom it “didn’t count”.

I’d just been taken over by my own wanton lust - I couldn’t blame him for not expecting his little sister to be such a sex fiend. It had even taken me by surprise.

A part of me was tempted to avoid him, purely to avoid any awkwardness, but I knew that wasn’t the right thing to do. The trick is to encounter these things head-on, otherwise they just build up and build up ... And so I put on some of my sexiest new lingerie, and slipped across the hall into his room.

“Hannah!” he said with surprise, and I went beet-red. God, he probably never wanted to talk to me again, not after what I’d forced him into the previous night.

“I’m sorry about last night,” I said, a secret thrill going up my spine at the way he couldn’t stop staring at my nipples, clearly visible through the peep-hole bra that I’d chosen. “I can assure you, it won’t happen again.”

“Of course,” he said, and I wondered if he was even aware of the way that his right hand had gone straight to his cock and started stroking it. Touching himself must have just been an instinct, when a sexy girl came into his room and posed for him in lingerie. Even if it was his sister.

I had more to say, but the motion of his hand distracted me, and I just stood there silently for the next few seconds, watching it pump up and down and up and down.

Stroke, stroke, stroke, stroke ... I shook my head, and forced myself to look back up at his face. He returned my eye-contact, but in my peripheral vision, I saw that he never stopped stroking his big, beautiful cock.

“I was hoping to catch you asleep...” I said, suddenly shy. “We’re so close to making you cum - I know we are. Let’s do everything we can to make that happen?”

“Everything?” my brother replied, raising one eyebrow.

“Of course,” I muttered, aware that my gaze had dropped back down to his cock, where his hand was moving in a slow, familiar rhythm.

Stroke. Stroke. Stroke. Stroke.

It’s the last time, I mentally added.

The previous night, I’d sworn that I wasn’t ever going to help my brother again - that it wasn’t good for either of us. When I’d awoken that morning, however, I’d immediately recognized how unfair the idea was. My brother had a problem, a medical condition - and I’d promised to help.

I had to help him. It was what I was there for ... it was what little sisters were for. I wanted to be a good little sister, and I certainly didn’t want to project my issues onto him. It certainly wasn’t his fault that we’d had sex last night.

And so I’d decided to give it all I had, for one more day. One more day only. If we couldn’t beat it today, we’d have to call it quits. But for one more day, I’d be his.

It wasn’t his fault it was the best sex of my life ... but that was a thought I was trying very hard not to have.

And so I sat at the end of his bed, pinching and tugging on my nipples as I watched him stroke his cock. I’d come into the room that morning with a strict set of rules I was going to follow. I wasn’t going to touch him. This was going to be the last day I helped him.

And I certainly wasn’t going to touch myself ... not after where that had led the previous night.

I didn’t trust myself. Not with such a big, magnificent, beautiful cock.

Stroke, stroke, stroke, stroke.

I’d expected to feel nothing but revulsion as I helped my brother for the last time, but despite the disgusting memories I couldn’t help but associate with my brother’s cock, I couldn’t help but admit how nice it was. Thick, strong, delicious. I loved watching him stroke it - up and down and up and down ... Honestly, watching him run his hand up and down his shaft made me miss it. How it felt in my hand - so soft to the touch, so hard underneath. The way it would throb along with his heartbeat, or pulse if I did something particularly stimulating.

I couldn’t help but moan slightly as I tugged on my teats, watching my brother jerk off. God I wanted to touch it - I loved the smell, the touch, the taste ... I was so tempted to play with myself, but I knew that I couldn’t. I couldn’t ... We sat there for so long, him slowly pumping his cock, me tugging on my tits, obscenely stretching my nipples, hoping he was enjoying the sight of my hot body, the view of my shaved pussy that my crotchless panties gave him ... every now and again I found myself muttering “This is the last time,” but my brother would just shush me and tell me not to worry about it, and so I didn’t, just watched as he pumped his thick, gorgeous cock.

I have no idea how long I’d been sitting there when he stopped. My nipples were aching, but I couldn’t tell if that was from need, or from how hard I’d been pulling on them. My brother’s hand halted, and it took me a few seconds to realize what had happened.

“Why?” I said, sounding strangely desperate. We only had one day left ... I needed him to cum. I needed it. And it certainly had nothing to do with how much I loved watching him.

That’s what I told myself, at least.

“Hmm?”

“Why did you stop?” I repeated, sounding no less needy.

“It’s no good, Hannah - my hands are just so tired.”

“Oh,” I said, my heart sinking. If I couldn’t help my brother cum, I was worthless.

In that room, I told myself. My purpose in that room at that time was to help my brother cum - if I wasn’t able to do that, I was worthless.

It was a strange thought, but it somehow resonated through my whole body.

“I’m sorry,” he said. “Maybe tomorrow?”

“No!” I said, far too loudly. There wasn’t going to be a tomorrow - if I was going to help my brother, it was going to have to be now.

And of course I was going to help my brother. That wasn’t even a question.

“Here,” I said, throwing my first rule out the window and ignoring the part of my brain warning me it was a bad idea. “Let me...”

I crawled toward my brother on the bed, my tits dangling beneath my body, and positioned myself so he could see as much of me as possible. My hand wrapped around my brother’s cock perfectly, like I was born to do it, and I started stroking, trying to hold back a moan as I did.

Everything about that moment - it just felt so right. I loved helping my brother get off. I loved using everything I had - my body, my hand, everything. If it would help him get off, it was his.

Just for one last day, I told myself.

As I jerked him off, he started stroking my hair, and I allowed myself to be lost in the moment.

Stroke, stroke, stroke, stroke. Up and down. Up and down. Everything was so relaxing - so right. I don’t even know when I started stroking my wet, exposed pussy. Everything was in sync - my hands, my pussy, my brother’s cock. Even his hands were stroking my hair to the same rhythm.

Stroke. Stroke. Stroke. Stroke. I loved helping my brother get off. I loved pleasuring him. I loved being... Talk, I suddenly told myself. Talk to him - it’ll help him get off.

“I love being your little pleasure slut,” I said, barely even listening to the words sat they tumbled out of my mouth. “God, I fucking love the feeling of your cock in my hands ... I wish I could do this all day. I love it, I truly do. It’s so relaxing - it gets me so wet. I’m so turned on - your cock turns your little sister on so much. I love being a slut for my brother. I love being my big brother’s little pleasure slut. I’m your little sister slut - I’ll do anything for you.”

“Sshhh,” he said in response - I’d surprised even myself, calling myself his little sister slut. Obviously it had put him off ... but I couldn’t stop. The floodgates had opened, and I couldn’t stop talking dirty.

“I loved fucking you last night. I can’t stop thinking about it - I just want to ride your cock all day every day. I just want to make you cum, cum inside me. I want you to cum for your little sister - will you do it? Will you cum inside your slutty little sister?”

“Hannah!” he said, shocked, but I was so horny that I’d completely lost control of my mouth. and so I did the only thing I could think of to shut myself up ... I leaned forward, and took my brother’s cock into my mouth.

Oh god, I thought. It felt so good ... it felt so right. It felt like I was born for this, for the explicit purpose of sucking my brother’s cock. Just the idea of how it must look - my lips wrapped around his big, thick phallus ... it was almost enough to make me cum on the spot.

But I couldn’t. I was so wet that I was dripping onto the sheets, so horny that my entire hand was now pumping in and out of my sopping cunt, but I couldn’t cum. Something was stopping me, but I was far too distracted to think about what it was.

My head was frantically bobbing up and down on my brother’s cock. I wanted to make him cum more than I’d wanted anything in my life, and looking up at his sweating face, I could see that he was close.