Chapter 4

I couldn’t wait until the next time I had a chance to help my brother out. The fantasy I’d last time ... it was so hot. I mean, it would have been if it hadn’t been my brother. Since it was my brother, it was just relaxing. I felt so relaxed after helping my brother, and I was really looking forward to helping him again.

My boyfriend was surprised when I asked him to stand over me and jerk off, but he didn’t object. I couldn’t explain why I needed it so much - the image was burned into my brain, and I had to experience it for real, not just in my imagination.

He stood above me, and it was so easy to let my mind flit back to the previous night, when I hadn’t just been doing it for fun, but doing it to help my brother out. I loved helping my brother. I loved how relaxing and non-sexual it was.

With my boyfriend, however, it was extremely sexual. My mouth moved on auto-pilot, like it had been last night.

“Please,” I begged, watching my boyfriend’s hand move back and forth, my own hand furiously rubbing at my clit within my soaked panties. “Please, cum on my tits. I need it. I need you to cum on my tits. I’m just a slut. I’m just your little slut...”

My boyfriend clearly had no idea what came over me ... but before long, it was him. My eyes rolled back in my head with pleasure as I orgasmed, feeling his hot cum landing on my tits. Unlike last night, the sensation didn’t make me black out ... of course, last night it had just been a fantasy. This was real.

I enjoyed watching his cum slide down my skin, and was tempted to scoop it up and taste it. Before I could, however, my boyfriend had offered me a towel, and I cleaned myself up.

“Thanks, baby...” I said, in the sultry voice I normally reserved for my brother. To help my brother, that is. “Have you got enough for a second round?”

It was two days later before our parents were out for long enough for me to try again, and I was practically crawling the walls with frustration. Nothing relaxed me as much as watching my brother stroke his cock. Cumming with my boyfriend was nice, cumming in my bedroom when I was alone was great, but nothing - nothing compared to when my brother and I got a chance to get together and help each other out.

Help him out, I mean. I was just helping him out. My pleasure was incidental.

That’s what I kept telling myself.

Finally, my parents went out, and I practically ran into the living room, tore my outer layers off, and started playing with myself.

It just wasn’t the same though. I was too tense - far too tense. When it was just me by myself, the situation was too sexual, and I couldn’t really relax. I needed my brother to be there, so that it could be a calming, neutral, relaxing situation. I needed my brother there, or else I just couldn’t cum.

I waited in that living room for close to two hours, casually toying with my pussy, wishing my brother was there to help me get off. So I could help him get off, I mean.

Finally, just after the clock struck eleven, he got home.

“Oh, hey baby sis,” he said casually, his eyes traveling up and down my mostly-exposed body. I was wearing a pair of my sexiest underwear - I wanted to make sure that my brother was as turned on as possible, looking at me. After all, he couldn’t get off unless he was turned on, and it was my job to make sure he was as turned on as possible.

“Where have you been?” I pouted, and in reply, he just looked at me strangely. God, what was I saying? A blush spread across my face, and travelled down my neck. I was so embarrassed - what did it matter where he’d been? He was a free agent, after all ... I was just his sister.

And I was meant to be helping him. God, what a stupid slut I was being.

Slut? I didn’t mean slut, did I?

Before I could ponder my word choice any more, my brother shifted, and I noticed the bulge in his pants.

“Never mind that,” I said quickly. “I thought since we had the house to ourselves tonight, we could try again?”

“Oh, I dunno...” he said reluctantly. “I’m pretty tired.”

“Please?” I asked, putting on my best puppy-dog face. “I really want to help you out, bro ... come on, I can see that you’re hard.”

“Can you blame me? With what I’m looking at...”

I blushed again at the compliment, but something didn’t seem right. Why was he objectifying me like that? I mean, yes, I’d chosen my lingerie for him, but surely it was... - And there it was. I moaned at the sight of my brother’s magnificent cock, and quickly slipped a hand into my panties and began to match his rhythm.

Oh yes. Yes, this was it. I’d missed this. The complete relaxation that you can only really get with a sibling in the room ... I was so relaxed that I could really let myself get turned on, and before long, my panties were soaked through.

Stroke, stroke, stroke, stroke. So rhythmic. So consistent. So relaxing. Up and down, and up and down ... It was so sexy, watching my brother stroke his cock. By sexy I obviously mean relaxing, but the two were quickly becoming one and the same. When I was relaxed, I was horny. Being relaxed was sexy. My brother’s cock relaxed me, ergo ... my brother’s cock was sexy.

Pump, pump, pump.

My brother’s cock was sexy.

Stroke, stroke.

My brother’s cock was sexy. My brother’s cock was so sexy ... I could feel myself getting close to an explosive orgasm, when to my dismay, my brother started slowing down.

“Um, what are you doing?” I said, looking him in the eye. It suddenly seemed like a strange question, but I was too horny to care.

“I told you, sis, I’m tired. Can we do this some other time?”

“I ... I guess,” I said sadly.

I went to bed frustrated that night. I was so close, but so far ... no matter how much I played with myself, no matter how perverse the thoughts running through my head, I just couldn’t cum. I needed to be relaxed, and for that ... I needed my brother’s cock.

Finally, at 3am, I couldn’t stand it any more. I was so tired, but too horny to sleep, and so I knocked on my brother’s bedroom door.

“Go away!” he cried out, and I considered taking his advice.

“It’s Hannah,” I said, and he made a noise of exasperation.

“I know! Go away!”

“Are you awake?”

“No!”

I rolled my eyes, and pushed his bedroom door open.

“What is it?” he asked, and sitting on the end of his bed, I told him.

“I can’t sleep,” I started, and just got a grunt in reply. “It’s ... your problem. I feel like we’re never going to fix it if we just give up whenever you’re tired. Isn’t there anything I can do?”

“No,” he said, no longer sounding annoyed. “No, Hannah, I don’t think there’s anything you can do. I don’t think there’s anything that anyone can do - I’m just a freak, and nothing is ever going to change that.”

The sound of surrender in his voice almost broke my heart, and I had to blink back a tear before I could reply.

“Come on, bro ... I’m your little sister. I’m here for you. Between the two of us, I know there’s something that we can do. Let’s give it another go, okay?”

There was a long pause, until finally he sighed.

“Fine,” he said, and turned on the light. “Hannah!”

Like most girls, I don’t sleep with a bra on, and I’d forgotten to slip anything on before coming into my brother’s room. Sitting on the end of his bed, topless, I was suddenly hit with a wave of self-consciousness.

“I, uh, um, I ... sorry, I should ... uh, maybe I should... -”

“No, wait,” he said as I got up. “It’s sort of hot.”

He really shouldn’t be speaking to me like that, I told myself, but before I could make my objections heard, he’d pulled the blankets down to reveal his beautiful erection.

“Oh,” I replied in a small whimper, and sat on the end of his bed to play with myself.

The hours of frustration had built up, and my hand was down my panties for just a few seconds before I could feel my orgasm approaching. Watching my brother was so relaxing, it always made me cum.

“Wait, Hannah...” he said, clearly recognizing the signs. “I think I’m close. Wait for me, okay?”

We did it, I mentally told myself in triumph. We broke through whatever it was ... he’s going to cum. He’s going to cum, all because of me. I pulled out all the stops. I crawled over him, until my tits were dangling right in front of him, practically touching his dick. I couldn’t look away from it as I started to talk dirty:

“Oh, do it. Do it. Cum on my tits. Cum for me. Cum on your little slut’s tits. I want it ... I need it. I want to see you cum. Please ... please!”