Tricky Brother

This happened when I was about 10, my older brother by 4 years was in his bed and when I entered the bedroom he made some rapid movements to cover up, I was not sexually active then and had no idea what he was doing, he'd asked me if I wanted to try something, and I asked what, he said would I put his penis in my mouth, he offered to do the same to me but only after he had been sucked, he said I would really like the feeling and that we couldn't tell anyone, being naïve I agreed and he slid the sheet down exposing his still hard dick to me, I was standing next to the bed and looking down at his cock, he was slowly stroking it and said it was ok to put it in my mouth, I leaned over and put the tip against my lips and he grabbed the back of my head and lifted his hips, thrusting his cock into my virgin mouth, I gaged and he lowered his hips and told me to slide my mouth up and down his shaft, he moved one hand to my shorts and pulled them down exposing my hardening cock to the air, he wrapped his fist around my dick and started to wank me as I sucked his dick. after a few minutes his precum leaked from his cock while it was working its way inside my mouth as he was kneading my balls and asking me to spread my legs more, I swallowed the cum as I didn't know what it was and the taste was something completely different. He started to moan and thrust more and he said I was in for a treat as his balls started to tighten and he grabbed my head with one hand and held it, while with the other he pushed a finger into my anus and came in my mouth, I stopped bobbing up and down and tried to lift off his cock but he held me there and spurted his juice into my throat, he was cumming pretty hard and I was squirming trying to get away from this leaking cock and his finger in my bum when he said between moans to swallow what he had spurted in me, I hesitated but the taste and consistency was not something I had had before and I swallowed what hadn't dribbled out of my mouth, He released his grip and slid down so he could suck me, I was still hard and he took my cock quite easily and started to blow me, again he worked me up and then as he slid his finger near my backdoor I came and he took me deep in his mouth and he swallowed every drop. I didn't know we were doing anything wrong and till this day every time I suck a cock I swallow their load and I love it, the taste the feel and the reward