I was 13 years old and although I already had pubic hair and had some erections, I was still a child mentally, I didn't masturbate and had never ejaculated. At that time, I shared a room with my older brother, who was 16. My brother and I were totally opposite, he was a clone of my father, tall, hairy, athletic, and at his age, he had a defined body and was the typical macho, I, on the other hand, hadn't had my growth spurt yet, was completely hairless, and hated sports, and to make matters worse, I had a bit of a feminine side, I looked more like my mother than my father. I knew perfectly well that I wasn't my father's favorite, although I tried to please him by always getting good grades, I didn't meet his expectations as a son, however, he was obsessed with my brother.

At night, I would hear my brother masturbating in bed, at first, I didn't know what he was doing, and one day I asked him why he was making noise, to which he replied "in my room, I do what I want, you mind your own business!" It took me a long time to figure out what he was doing, I was that clueless!

But one night, all my innocence disappeared suddenly. Summer vacation had just started, and my brother was allowed to stay out late with his friends to celebrate the end of the school year, he had a girlfriend at the time, but I imagine she was still reluctant to have sex, and my brother came home late and very horny. He woke me up when he came in, but I didn't move, I pretended to be asleep and stayed lying on my side facing the wall. My brother took off his clothes, turned off the light, and to my surprise, he got into my bed instead of his own, I said "what are you doing?", but he covered my mouth with his hand and whispered in my ear "if you say a word or make any noise, I'll beat the hell out of you!" He spat on his other hand and used it to lubricate my ass, then, while covering my mouth tightly with one hand, I felt his cock entering my ass, he thrust it in abruptly despite the resistance my tight ass put up, I had never felt such pain in my life, and my scream was muffled by my brother's hand, my eyes filled with tears from the pain, fortunately, it didn't last long, when he finished, he whispered in my ear "if you tell anyone about this, you know what will happen to you" and went to his own bed. I stayed in my bed for a while with tears in my eyes and still feeling a strong pain, when I could react, I got up and went to the bathroom, I cleaned myself, and the toilet paper was stained with a mixture of blood and semen, it was the first time in my life that I saw semen, and it wasn't mine, as it would have been normal, but my brother's. At that moment, despite the pain I still felt, I realized something, I had an erection.