I (17F) am sexually attracted to my younger twin brother (17M). Since I was a child, I was masturbating to the thought of my brother fucking my cunt until it was red and puffy. I would steal his used underwear and sniff it while fingering my pussy or ramming it with a dildo imagining it was his cock. However, I have known for a long time that my twin brother is secretly gay because I would watch him fap to gay porn and finger his asshole in his room without him knowing. He is a very innocent, cute and naive boy and he seems to only get off when his ass is being played with and has no interest in fucking anyone with his cock. This has sparked a new fetish in me: I really want my brother to never use his cock. I want to tease him by sucking him and fuck his boy pussy with a strap on until he cries and deny him his orgasm. I want him to never use his cock to penetrate anyone, I just want to abuse it until it’s too useless to fuck anyone because he will cum at the slightest touch. I get off imagining how I will turn my twin brother into a little sissy girl and how we will kiss and suck each other’s nipples while I grind on his cock but never let him enter me. I want us to both be like a lesbian incest couple while men who are much more manly than my brother and have much bigger cocks than his pathetic circumcised 3-incher take turns fucking us both silly and unconscious. I want to be my brother’s master and train him like my pet.
But two years ago, I found out that my brother was seeing someone. An old man who was 48 and our teacher. My brother has never been the smartest, so this teacher had offered to “give him private supplementary classes” at our house but I was always watching the two and whenever our parents were away, I could hear them make out through the walls. I could hear how my brother moaned and gasped and screamed as the man spanked his plump ass and finger-fucked him and made him submit to all of his kinky sex plays. I always tried to hide in my brother’s closet and peek at them. I watched as our teacher plunged his cock into my brother’s tight ass and ravaged him until he couldn’t stand or walk straight anymore. I watched as he pierced my brother’s nipples one night and made him bark like a dog while he pissed all over him and made him clean his cock cheese with his tongue. I got off every single time to how he abused and fucked and defiled my twin and took many pictures of them in action.
One day, on our 16th birthday, I approached my teacher at school and told him that I knew he fucked my brother and would expose what a degenerate he was to the principal because I had evidence. He got desperate and begged me to not do it. I told him my conditions: since it was now legal for me to marry with my parents’ consent, I would convince my parents to let me marry him. He would let me live in his house and I would say that I needed my brother with me because twins are inseparable to my parents. We would live together all three: my teacher, my brother, and me. And I wanted us to have threesomes daily, maybe even moresomes with his friends, and turn my brother into a total cock-loving slut.
Of course he agreed and we have been living together in pure bliss since last year. My twin brother was shocked at first and refused to have sex with me but submissive as he is, it only took a while to show him how great the pleasure of incest is. We sleep together in the same bed and I suck both of their cocks each morning after getting up. My brother and I have quit school to be full-time sex slaves and I make sure to keep up my brother’s training while teach is at school. My brother’s body has developed nicely since then and he can now cum only from his asshole or from having his nipples teased.
We started a new play recently: dog play. It was always my favorite since I watched teacher and him do it. Teacher puts us on a collar and leash and we walk the park on all fours and naked at night. There are many stray dogs there and teacher makes sure the wildest ones knot my brother and mess up his pussy good. Meanwhile, he will fuck my pussy and asshole and fill me up. My brother was reluctant at first but now he is a beastiality addict. He even dreams of horse cock now, he told me. He loves getting knotted and being powerless against an animal. Once he is fully filled up and his stomach is bulging with cum, we plug him up with a dog tail butt plug and I force him to eat teacher’s semen out of my holes.
I also love dressing him up in girly things and we both pretend to be lesbians scissoring for teach. Sometimes teach even invites his friends and we have orgies until both of us pass out.
Only one thing has changed since we started: I don’t want my brother’s cock to be completely unused now. So I didn’t let it happen. Although it’s completely useless and can’t stay stiff for long enough to fuck a girl, I took the opportunity right at the beginning a few months in to take his hard cock inside my bare pussy and have him fuck me raw with no birth control. I am currently 8 months pregnant with a baby boy and we are telling everyone it’s teach‘s. I am so happy and hope our incest baby will have a good time in our happy, sexy family!!!!!!!