Every Sunday we would go to my grandparents' house for dinner. They lived in a huge two-story apartment in the upper area of Barcelona. All my aunts were married. Only Uncle Andrés, the youngest brother - he must have been around 30 years old - lived with them. The house was large, and he had set himself up in a loft - what used to be the "golfes" - situated on the top floor of the estate. A 60-square-meter loft, very cozy, restored by himself, and prepared to receive his lovers. At the time, I was 16 years old, a slender teenager with green eyes, full of hormones and eager to have sex with masculine, dominant, well-endowed, and vicious men.

Uncle Andrés and I had barely met, except at Christmas, until that Sunday when we rode the elevator together. I got off on my grandparents' floor, and Andrés looked at me carefully, as if he had never seen me before, and without any discretion, waited for the door to close.

He arrived for dinner half an hour later. He didn't say anything during lunch. Later, in the living room, he wrote something on a piece of paper, and at one point, he handed it to me discreetly when he was saying goodbye. "I'm going to take a nap," he said.

"Boy, come up, I want to show you something. Don't tell anyone," the note said.

"Goodbye," I heard myself say, and I went up the stairs stealthily. The door was ajar. Uncle Andrés was sitting on a sofa, shirtless and with a cigar in his hand. "Close the door with the key and get on your knees, kid."

Uncle Andrés was a man of medium height, with a masculine appearance, a rugged face, and a large build. He seemed unsociable and not very affectionate.

He had large hands, and I imagined his penis would be in proportion. I wasn't wrong.

He took it out without asking and introduced it into my mouth in the same way. That afternoon lasted about 10 minutes. He fucked my mouth as if he were studying its dimensions. He withdrew it before coming. "It's your first time. I know you'll come back. You'll have to earn your cum. I guarantee I'll give it all to you, bitch. You can leave now."

On Wednesday, he was waiting for me outside school. He was standing, leaning on his car, which I found exciting.

"Have you thought about what happened last Sunday?" "Yes, of course." "And do you regret it?" "Not at all, uncle," I said. "Would you like to repeat it?" "Please," I replied.

"Okay, I've written down some rules I'd like you to follow," he said. "Read them when you're relaxed, and burn the papers after you understand everything. They're simple instructions, but it's essential to follow them exactly. If you agree with them, tell me on Sunday, and next week I want you to go to the apartment I indicate, to spend Wednesday and Thursday with me. Come up with a good excuse so your parents won't worry. I want you to be with me from Wednesday at 5 pm to Thursday at 10 pm. I'm your uncle, you have nothing to fear." "I'll t...