Chapter 7

Later that night, my brother suggested a trip to the cinema, to check out the new Transformers film. To everyone’s surprise, Mom and Dad were able to come as well - they’re normally too busy to hang out with us, but by chance, the whole family had the night off. I sent my boyfriend a text, but he wasn’t able to make it.

Normally I’d just go the movies in whatever I was wearing around the house, but for some reason I was really drawn to a yellow skirt that’s been at the back of my closet forever. It’s a bit short, but since I was wearing some of my new, sexy panties, I figured it made sense to wear something that could potentially show them off.

And of course, if you’re wearing a short skirt, you have to pick a top to go with it. I hadn’t had a chance to wear my new push-up bra yet, so I picked a white button-up shirt that would show off some cleavage to go with it.

Mom raised one eyebrow when I met them at the door, but she didn’t say anything, and I don’t think Dad even noticed. My brother gave me a wink, which made my whole body go warm for a second, but then I realized how weird it was.

My brother was appreciating my body.

Although hell, why shouldn’t he? I was flaunting it. I was flaunting it ... for him.

I mean, when I’m helping him out, that’s fine. I need to dress sexy if I’m ever going to help my brother cum, and as a sister, that’s what I’m here for. I mean, that’s what I signed on for.

But when we’re not ... y’know, doing that, it felt kind of weird to have him ogle me.

We had to leave straight away, or we were going to be late, else I would have gone back upstairs and changed. As it was, I was tempted to skip the whole thing, but I guess I felt I was overreacting.

Sitting in the back with my brother, when he reached out to tussle my hair, I actually flinched, and I could instantly see the hurt in his eyes. My poor brother - here I was, freaking out without letting on what was happening - he hadn’t done anything wrong.

I felt so guilty, I immediately slid over to the middle seat, and leaned my head against my brother’s chest. He asked Mom and Dad to put some music on, and started slowly stroking my hair.

Stroke, stroke, stroke, stroke.

I looked around, stunned, when we arrived at the cinema. I must have totally zoned out for the whole car trip, I was so relaxed.

“What were you kids talking about back there?” Mom asked, and now it was my turn to raise one eyebrow. We hadn’t been talking about anything - I’d just been lying there, enjoying the feeling of my brother’s hand on my hair.

As Mom and Dad went to get the tickets, I wandered over to check out the movie posters. I noticed my brother was staring at me - with a grin, I made sure that no one else was around, and lifted my skirt up, giving him a cheeky flash of the thong panties I was wearing. After all, that’s why I was wearing them - the more I could turn my brother on, the higher the chances of making him cum.

And I needed to make my brother cum. I was going to do whatever it took.

We grabbed some popcorn and made our way into the cinema - my brother was on the end, then me, and then my parents, Mom next to me (so she could share our popcorn).

I’m not a massive fan of the Transformers films, but this one was pretty good - while we watched, my brother was idly stroking my hair. I love the way he does that - it’s so relaxing, and it always gets me so wet.

About half way through, he leaned over and whispered something in my ear.

“Hannah,” he said, “that girl - she’s so sexy.”

I nodded in agreement.

“She’s so hot ... she gets me so hard.”

I blushed, and immediately started taking some mental notes. The way she wore her hair, the way she dressed - the more I could emulate her, the better my chances were of getting my brother off.

“Do you ... do you think...”

My brother trailed off, and it took me a few seconds to realize what he was getting at. He’s shy - probably why he has the problem in the first place - but I quickly worked out what he was too nervous to ask.

I answered probably way faster than I should have. I was just so relaxed, so horny, and the idea of helping my brother in such a public place ... with my parents right there...

I couldn’t resist.

“Shhh,” was my only reply, and as the giant robots battled before me, I tried to be as subtle as I could, reaching over and unzipping my brother’s pants, guiding his erection out into the cinema where anyone could see.

I was so turned on by the idea of what we were going to do - on one hand, I wanted to constantly check to make sure that Mom wasn’t watching, but I also knew that checking every few seconds was more likely to raise suspicion, and so I continued to stare ahead as I started slowly pumping my brother’s cock, up and down and up and down...

He leaned in close, still stroking my hair as I jerked him off in the cinema, my arm moving slowly, barely able to resist reaching down and touching myself. Every time the hot chick appeared on-screen, I could feel his cock swell slightly.

Sure, it was risky, but that just made it even more hot. Also, if this was what finally worked ... if my brother could cum here, in a crowded cinema full of people, then I was sure he could cum anywhere.

I was helping my brother. Good sisters help their brothers. I was helping my brother cum - I was serving my purpose. I was helping my brother.

Stroke, stroke, stroke, stroke.

“Shhhh,” a man in the row behind us hissed, which surprised me. I was being so careful with my stroking, I knew I wasn’t making a noise. Occasionally I’d lick my hand, make sure it was as well-lubricated as possible, making sure that my brother got as much pleasure as he could from my administrations.

My purpose was to give him pleasure. I was dressed to give my brother pleasure. I loved helping my brother - it was so relaxing. I loved it when my brother saw my sexy lingerie. I loved dressing sexy for my brother.

As I stroked him, I was getting more and more turned on. My exhibitionistic streak was coming to the fore, as well as how relaxing it was, being SO comfortable with my brother. I mean, if you’re comfortable enough to jerk someone off in a crowded cinema ... well, that’s pretty fucking sexy.

Up and down and up and down. Stroke, stroke, stroke, stroke.

I’m sexy. I love being sexy. I love helping my brother. Being sexy helps my brother. I love being sexy for my brother.

I blinked twice as a particularly loud explosion startled me out of my own thoughts. I mean, obviously I don’t like being sexy for my brother - it’s just a means to an end.

As the fight scene started to wind down, my attention was drawn back to the cock in my hand. It was such a lovely cock - I could practically see it in front of me.

Stroke, stroke, stroke, stroke.

To my delight, I could feel my brother’s hips start to jerk slightly, just like my boyfriend’s do when he’s about to get off. He grabbed the popcorn from me, and I held my breath for the next minute as his hips rose out of the chair, sporadically thrusting.

Had I done it? Had I finally managed to make him cum? Was ... was my brother finally fixed?

And why did the thought make me so inexplicably sad?

When I couldn’t hold my breath any longer, I leaned over, trying to be as casual as I could.

“Did you cum?” I whispered, making sure that even in my excitement, I didn’t draw any attention to us.

“Of course not,” my brother said sadly.

“What?” I replied, in my surprise speaking far too loudly.

“Shhh,” the man behind us said again, and even Mom turned to us. Fortunately, the popcorn was blocking her view of my hand (which was still wrapped around my brother’s rapidly-deflating penis) and she quickly turned back to the movie.

“What?” I said, much more quietly this time, but when I turned to face my brother, he had such a look of sadness on his face that I could hardly bring myself to ask any more questions.

He quietly zipped his pants back up - just in time, too, because Mom almost immediately reached out and grabbed the popcorn.

“Hannah,” she said a few seconds later. “Does this taste weird to you?”

I tried some of the popcorn - there was a strangely familiar tang to it, but to my mind it improved the flavor.

“No,” I said, and she nodded, her eyes never leaving the screen.

The ride home was uneventful - I sat in the front with Dad listening to music, my brother and Mom sat in the back - but when we got home, I feigned tiredness and went straight to sleep.

As soon as my parents went to bed, I went straight across the hall into my brother’s room.

“Oh hey Hannah,” he said. “What’s up?”

I couldn’t help but look at him like he was an idiot.

“I want to ... you know,” I said as I undid the buttons of my shirt. “Help. I felt like you got really close at the cinema - maybe tonight we can finally crack it.”

“Oh, thanks,” he said awkwardly, unable to stop himself from admiring how well my new bra emphasized my tits. “That’s really nice, but I’m not sure...”

“Please?” I asked, pouting as my skirt dropped to the floor. “I’d really appreciate it...”

“I dunno...” he replied with a heavy sigh, as I angled myself to show off as much of my body as possible. I was wearing nothing but lingerie now, my pert ass split by the strap of the thong. “I just...”

“What? What is it?”

“I can’t help but feel like I’m being so selfish.”

“Not at all!” I said, looking at him earnestly, tempted to punctuate my remark by giving my ass a hard spank. “You’ll be doing me a favor, I swear...”

I wasn’t lying. The car trip there, jerking him off during the movie - it had all been so relaxing, it had gotten me really worked up. I wanted nothing more than to watch my brother’s beautiful cock cum...

Not that my brother’s cock was ... it was just because it was relaxing...

I stepped backwards, confused, but my head cleared as my brother started talking again.

“Honestly, it feels so one-sided. You come in here all the time and help me out - what do I do for you?”

“Don’t mention it,” I said sincerely. “Honestly - it’s no trouble. I really love helping you. It’s what I’m here for.”