“You won’t remember this conversation, will you?”
“Won’t ... remember...”
“You’ll forget everything, won’t you?”
“Forget ... everything...”
“You’ve got a new purpose in life, don’t you?”
“New ... purpose...”

I moaned as I felt my little brother’s cock enter me. It was the third time this week, and he never failed to impress me with his girth.

His cock. It was just so ... big.

I’d been at home, in the middle of preparing dinner for my husband when I’d remembered how good it had felt the last time I’d come over and fucked Garth, and I simply couldn’t resist. I asked Michael if he’d mind finishing the meal, got in my car, and less than ten minutes later we were in his room, and I was once more impaling myself on his erection.

God I loved the feeling of fullness. The first time we fucked, we’d needed to use almost a full bottle of lube - my husband’s dick isn’t exactly small, but compared to Garth ... well, since the first time I fucked my little bro, I barely notice Michael’s prick entering me.

Garth’s massive cock. It had become the only thing that could satisfy me.

Now, just a few weeks later, I don’t need to use lube at all. I’m generally so wet by the time I get here, simply from anticipating what’s coming ... he can just slide right in. It never fails to elicit a moan. The feeling of slickness, the knowledge that it wouldn’t be long until I got off, and he gets off inside me...

It had taken me a while to get used to the taboo of being taken by my brother’s cock, but once I got used to it ... well, I found the idea a bit of a turn-on in itself. I knew it was wrong, I knew it was dirty, but I couldn’t help it. I didn’t want anything else but to be fucked by Garth, fucked by my little brother, over and over again.

I stayed until 3am that night. Honestly, I lost track of how many times I came, or even how many times Garth came inside me. He insisted on keeping my panties as a trophy, so cum dripped out of me for the whole drive home. I got into bed with my husband, too exhausted to even clean myself off, and fell into a dreamless slumber.

“Say it again, please.”
“I exist to serve.”
“Once more, please. Like you mean it.”
“I exist to serve.”
“And how do you serve?”
“By getting off.”
“And how do you get off?”
“By getting men off.”

The next day was an interesting mix of happiness and exhaustion. I feel like I floated through most of it, still euphoric from being fucked the previous night. Until you’ve had a real cock inside you, I don’t think you can really say that you’ve been fucked. I know that I’d made love to plenty of guys, but until I’d become acquainted with Garth’s massive erection, I really don’t think that I’d felt true sexual satisfaction.

With only a few hours sleep, however, I was a bit of a wreck. I kept tuning in and out - Michael’s complaints about how I’d disappeared last night just went in one ear and out the other. Work was no better - I was meant to be taking the lead on the Johnson estate, but I just didn’t have any energy. In the end, I decided to take a half-day, and head home for a nap.

On the way home, though, I started thinking about it again. I knew that Garth would be in school, but perhaps if I asked at the front office ... perhaps if I told them it was a family emergency.

As soon as the idea entered my mind, my hands started steering me towards his school. I went straight to the front desk, hoping that my gait didn’t convey how nervous I was - I tried to act confident, but the knowledge that the woman at the front desk could prevent me from getting fucked again ... well, that would be enough to make anyone nervous.

Fortunately, she didn’t blink an eye - she didn’t even notice me nervously wringing my hands as I waited for Garth.

“Oh, hey sis,” he said when he saw me. “What’s up?”

Obviously I couldn’t tell the truth in front of the school receptionist, but I think he got the message. A few minutes later, he’d led me to a spare classroom, and I was once more impaled on my little brother’s cock.

I wish I could better describe how it felt. It was just ... the most perfect feeling. When he entered me, it was like a combination of the fullness one gets after eating a large meal, mixed with the sexual satisfaction of a good night of fucking. And that’s just the first stroke ... as I lift my wetness up and down, the pleasure just grows and grows, and when I cum, I swear ... it’s like having my brain melted by a pleasure ray.

I’m just a big pile of goo when I cum.

When we’d started, I was worried about getting pregnant, and had insisted that he wear a condom each time. After the first few times we had intercourse, however, I couldn’t let something as silly as a piece of rubber come between us. I wanted to feel his skin on mine as he entered my wet pussy - I needed it. And the first time he came in me ... wow. It was better than the best sex I’d ever had, then times over. As my pussy clenched in orgasm, I knew in that moment that I’d never make him wear a condom again.

Once or twice I’ve had a pang of worry about what could happen when my little brother cums inside me, but then I just remember how good he makes me feel, and my worries just ... drift away.

As I got dressed, Garth said that he couldn’t always guarantee that there’d be a spare classroom. I knew that if they caught us together, they’d deprive me of getting filled up by my little bro, so on my way home I came up with an idea.

One stop later, and I’d traded my husband’s car in for a van. Fortunately my name was on the paperwork as well, so there was no trouble at the dealership. The man I dealt with seemed pretty over-the-moon about the trade - I don’t really know much about cars, but I know that a second-hand van is going to be much more useful to me than my husband’s Mercedes, and that was all that mattered.

This way, no matter where my brother was, I could meet him and have a safe place to fuck.

Tempted though I was to go and show off my new acquisition to Garth, I knew that he’d need to study tonight, so I just stayed at home. The toys that I’d ordered online had finally arrived, and though none of them can compare to Garth’s magnificent cock, they help to fill the void (so to speak) when he’s not around. Michael must have worked late or something - I don’t know exactly what time he came in, but when he found me on our bed, plunging the largest toy I’d gotten into myself over and over, he flipped.

He was trying to talk to me about the car and responsibilities and our marriage, but I just ignored him and continued playing out my fantasy. In my mind, Garth had taken the day off school just to fuck me. He’d come into my work, and taken me on my desk, right in the middle of the office. The rest of my workers were shocked, but I knew that they were just jealous. Jealous that they didn’t have a sexy brother like mine to come and fuck them, to take all their worries and cares away in the middle of the day.

“Crave.”
“That’s it. Good girl. Say it again.”
“Crave.”
“Yes, excellent. Once more.”
“Crave.”
“Perfect. Now, from the start?”
“My purpose is to serve. My purpose is to fuck. My purpose is to crave. Crave. Crave...”

By the time I came, Michael had left. He left a note, but I was too tired to read it - I wanted to get a good night’s sleep. I knew that tomorrow, I’d be fucking Garth, and I wanted all my energy so that I could enjoy it.

I was waiting at his bus stop in the morning. When he turned the corner and saw the van, he smiled that cute, gorgeous, sexy smile of his.

“Nice,” he said, and my heart leapt. We were inside for less than a minute before I ripped his pants off, and took him in my mouth.

Sucking cock was never something I was particularly into, not until I tasted Garth’s cock. I’d rather be fucking it, of course, but there’s something about the challenge of seeing how much I can fit in my mouth, in my throat - how much I can take before my gag reflex comes in, and I’m forced to slow down a bit. Over the weeks, I’ve been getting better and better. Garth likes it when I’m topless as I suck him, so that if he wants, he can coat my tits in his cum.

That would have been something that I would have found degrading, once upon a time, but seeing Garth get off is just so hot that it really doesn’t bother me any more. And of course seeing his older sister’s tits coated in his cum helps him get hard again quickly, which I obviously love, because it means that I get to fuck him.

As I forced as much of his cock into my throat as I could take, I reached behind me and undid my bra. Honestly, it was getting to the point where my bra was in the way more often than not - I’d been considering just not wearing them any more. On one hand, my tits need the support, but if it’s getting between me and Garth’s cock, it has to go.