When I turned 18 years I learned that my parents have always wanted me to become my big brother's slave. But just at that time, my dear brother was studying abroad. Dad could have just put me in a cage and send me like a package but instead, he prefers to keep me at home and wait for my brother to return after his graduation.
Well, that means I don't need to think about any gift for my big brother's graduation... because I am the gift instead!
Until then I waited, going to slave school to be prepared for him. I touched myself thinking about what he will do with my holes, sorry, his holes, the holes are him now, not mine. I never cum because he never allowed me to do so, and I can ask for permission because the fact that I am already his is a surprise. I won't be so selfish as to spoil his surprise for my orgasm! I just imagine him here with me, with his big cock ready to deflower me, his sweet little sister and when I was on the edge of an orgasm in my mind I just hear him just saying "No." and then I just stop. My brother didn't know it yet, but I already was his obedient slave little sister.
Finally, he returns, and he unpacked his gift, and there it was me, her sweet little sister ready to be his domesticated slave. Without further ado, he started to use me... his holes.
First, it was my ass, he got directly for my back door with no warning nor anything like lube. It was painful but I knew the pain was worth it because it makes my big brother happy. I do not know by all this time waiting for him I have only been touching my cunt and not my ass. He was rough? Yes, I cried? Yes, but I didn't ask my brother to stop. I am not the one who chooses how my body will be used. I even believe my brother's cock become even harder thanks to my tears! Maybe that is why my teachers told me in the slave school it would be okay to cry having sex, after all this is about my bother's pleasure, not mine.
I don't know how much time it was until he finally cum inside my ass. When I see I just forget the pain and smiled, happy to be finally being used by my big brother, I don't want anything except being useful for him. But I was a little sad because I also wanted to taste his cum. But hey, I ask for it and my brother just put my fingers in my ass and then he puts them directly into my mouth, to be able to learn what is to drink cum. How lucky was, tasting my brother's cum for the first time in two holes!
Then he chooses the second hole to use: my mouth. No, no, he didn't clean his cock. This is something I learned in the slave school: my mouth should be the tool to clean his cock. I was a little hesitant because his cock has a strong smell for being in my ass but I wanted to be obedient, to do what my brother told me to do. The fact that his strong hands were guiding my head helping me to for the first time take his cock and taste it, mixed with the taste of my own ass. He made me savor all his shaft in my mouth after he cum for the first time and for the second time I tasted his cum, this time directly, but I am still no sure to differentiate the taste yet, maybe if someone day he uses only my mouth I will know, but my dear brother said he will keep this ass and mouth order, so that means the taste of my brother's cock and cum will be always attached to the taste of my own ass. Well, so be it, my body my big brother's rules. When he ended he keep his cock inside my mouth and like a good girl I knew I shouldn't move until he wanted it, it should be him who moves his cock from my mouth, not me, if he doesn't maybe there is a reason.
And I was right, there was a reason to not do it, a few minutes later he just started to piss in my mouth and make me drink it. That was salty but personally, unlike my ass, my brother's piss doesn't have so much bad taste. So, I am grateful for him to make me taste my ass before piss, thanks to my brother I will be drinking piss with a smile in no time!
What about my cunt? Well, my big brother didn't use that hole. And he has still to use it. I could be his piss drinking slut and ass to mouth whore but I remain a cunt virgin. My dear brother believes fucking a woman's cunt is no worth it, it is not as tight as a woman's asshole, and making me suck his cock clean won't be the same it is not from my ass. Maybe he could use my cunt one time to breed mi and give him a daughter, but I think he could just cum a few times over my cunt without using it, I only need his cum in my cunt to become pregnant, not his cock.
I have not even masturbated anymore, he does not want to use my cunt, but that does not mean he wants to allow others to use it. That does not just mean he won't share my with other men, he wouldn't do it even with my ass and mouth, he also doesn't want me to use my cunt, the cunt he owns. Ey, I have nothing to comply with, he owns everything of me, my body, my soul, my heart, and my holes, if he wants to keep my cunt virgin and pristine how I am to say anything? I am just his slave sister, he owns my holes, just because my brothers don't use my cunt it does not revoke his ownership.