Marina — Part 3 (Anal with My Sister)

Entering my room, Marinka didn't hesitate and went straight to the bathroom, apparently wanting to wash off all the semen from the neighbor, though it was in vain—I don't mind seeing my sister covered in someone else's cum. It made it easier for me to accept having sex with my own sister, since she's a slut, meaning I could push away my own shameful thoughts; after all, a slut is a slut.

Hmm, if only we could have had sex back in our youth, while our parents were away. It's a shame we missed out on so much time in our younger years.

Twenty minutes later, my sister came out of the bathroom completely naked, but surprisingly, the dried semen on her face and chest hadn't been washed off. So, what was she doing in there all that time?

— Well, brother, my anus is ready to take your cock inside. It's all clean and cozy now. It's eagerly waiting for your cock.

Turning her back to me, she started deliberately swaying her hips in front of my face to seduce me. Not that I minded the idea of sliding her ass onto my cock. But I decided not to rush; if she's such a slut, so desperately craving my cock, then let her earn it. A slut will be a slut.

— So, my Slut wants her owner-brother's cock?

My sister looked at me with surprise but clear pleasure and arousal; apparently, my little sister is quite the masochist.

— Yes, my brother, I want your cock.

— Yes, my Master, that's exactly how you should talk to me. To get my cock inside you, you'll do everything I want, making up for all the years we lost.

— Yes, my brother, yes, my Master, I'll be your obedient slut and do whatever my brother orders.

— On all fours, Slut. Crawl to me, take off my pants and socks. And kiss my feet, suck my toes like they're a cock.

Without a word, my sister got down on all fours and crawled toward me. Her face was beautiful, covered in lust and arousal; apparently, she truly is not just a slut but also a masochist.

— My Master, I'm so happy to serve you. You are my Master, you always have been since childhood. I imagined us having sex so many times back then, when we first played house together. It seems the first man really left a permanent mark on me. Remember our childhood games? I often peeked at you in high school and tried to seduce you more than once by deliberately changing clothes in front of you in our room, but you acted like you didn't notice my naked body.

Oh, sis, if only I had known back then that you wanted the same thing I did, I wouldn't have held back for a second. My sister's mouth engulfed my toes, sucking them with her lips, licking between them with her tongue. She was really putting in the effort so that her brother's cock would later enter her ass and leave its seed inside. It's amazing how many years have passed since we last saw each other, yet the unsatisfied desires from our childhood still filled us. Maybe if we had had sex in our youth, we would have either grown cold toward each other by now or, worse, I would have knocked up my sister... Perhaps it's better that we saved it for now.

— You can raise your mouth higher, sis, and lick my balls thoroughly. Just don't bite, understand? Otherwise, I'll punish your little ass with my belt. Got it, slut?

— Yes, my Lord.

Marina's tongue started moving up my legs. For convenience, I sat on the edge of the bed so she wouldn't have to reach too high, and she sucked on my balls, which were burning with arousal. My sister had put on a real sex show for them today with the neighbor's cock, and now she was working hard for my pleasure, with the reward being a dick in her ass. And this anticipation made her try even harder with her lips and tongue. Swallowing one ball at a time, then both at once, she sucked them into her mouth like a vacuum pump, making me let out wild moans and praise for my sister:

— Yes, good girl, such a good slut. Your mouth is like a vacuum cleaner. Turn around and lift your ass higher and closer to me; I want to play with it.

Without hesitation, Marina obeyed, turning her back to me. She raised her ass as high as possible, like a cat in heat, so her hole was literally at the level of my cock. She obediently froze, waiting for me to play with her ass. Looking around, I found my belt, folded it several times, and took it in my right hand. The desire to spank my sister with the belt warmed my soul. Well, why not... The first sharp strike landed on the right side of her ass, making her flinch. Burying her face in the floor, she groaned loudly in pain. That wasn't enough for me, so the second belt strike hit the left side of her ass, making her groan even louder. But she didn't pull her ass away; instead, trembling, she held it in front of my face. The third strike landed right on her anal hole, making her cry out. The sphincter of her anus clenched like a lock. But literally ten seconds later, it relaxed completely, and the hole opened, allowing my two fingers to enter with little resistance. As soon as I inserted my fingers into my sister's ass, the sphincter immediately tightened around them. I felt it getting tight inside but also very hot. I started twisting my fingers inside her anus, making my sister moan nonstop, and inside, it became looser and wetter... I pulled my fingers out of Marina's ass; she was trembling, and the edges of her anus were wet.

— Brother, please fuck your disobedient slut!!! Your little sister wants to be punished with your cock inside!!!

I looked at the trembling back of the girl in front of me and smiled. Rising over Marina's ass, I guided my cock to the hole, letting just the tip enter... It was warm and tight inside. My cock went in with slight resistance but without stopping, inch by inch filling my sister's insides, making her tremble continuously.

— You slut, — I cried out in surprise and sharp pain; it felt like my frenulum was about to tear. In anger, I whipped my sister's ass and back with the belt, making her jerk forward and then back, impaling herself on my cock again.

— That's it, slut. I don't care that you're my sister; I'm going to fuck your ass so hard you won't be able to sit.

Grabbing her waist with my hands, I started forcefully impaling her on my cock, thrusting in and out of her sharply. Like an animal, I fucked Marina's ass, speeding up and slowing down, not giving her a moment to rest. Marina moaned and screamed nonstop, sometimes saying things like, "Yes, my Master, good, my Lord, fuck your disobedient sister." This wild sex—or rather, rape of my own sister's asshole—lasted about ten minutes. I was exhausted, sweating, breathing heavily, and the same went for Marina. Time to change positions. Pulling my cock out of her ass, I noticed it was nicely opened, even visible inside, not too deep.

— Now, get on top of my cock with your hole and keep fucking it until I cum inside you.

I lay on the bed, watching as my sister, with trembling legs, got up from the floor and climbed onto the bed. Throwing one leg over me, she carefully started lowering her ass onto my swollen cock, which refused to cum. Once fully seated on my cock with her anal hole, Marinka smiled at me and whispered:

— I love you, brother, and for you, I'll be whoever you want.

And she started riding it fully, slowly at first, adjusting to the position, but then, getting used to it, she sped up, moving faster and harder. At one point, she braced her hands on the bed and started moving very quickly, gradually bringing both of us to the point of orgasm. After three minutes of this fucking, I realized I couldn't hold back any longer. Grabbing her hips with my hands, I pressed her against my groin with all my strength, arching upward at the same time to get my cock as deep as possible inside her ass... Orgasm hit us simultaneously; our bodies shuddered—mine from the semen shooting inside her ass, hers from experiencing a strong anal orgasm.

At some point, we both froze and relaxed. Marinka fell onto my chest.

— I love you, brother...

— And I love you, sis...

In the morning, Marina left for home—she had to go to work, and I had things to do too—but we knew the weekend was ahead, and we would definitely spend it together.