I had never really thought about eating semen, it just never entered my mind. I knew it felt good to rub my penis until it got hard and I would often rub myself to orgasm, then the summer I turned 12 I started to ejaculate. I knew what it was (I was raised on a farm) but it never dawned on me that anyone would eat it. When I was 13 I had a friend who liked to experiment with me, he was 12 and had just started to ejaculate, we would frot (the top inserts his penis between the thighs of the bottom) and we would give each other hand jobs. One night he asked if I wanted to suck his balls, I said "sure" and we got into a 69 position. We rolled our tongues around each others sack for a while then sucked each other's balls into our mouths. Then we went back to frotting for a while but I wanted more. I went down on him and he got really hard, when I felt his leg muscles begin to contract I backed off and he shot his load up over my head. Then he went down on me and when I got to the point of no return I pushed on his shoulders to try and get him off me but he grasped the back of my thighs and held my penis in his mouth while I shot my load. Spasm after spasm sent load after load rocketing into his mouth and down his throat. When I was spent he backed off me and immediatley stood up and kissed me, passing my own warm semen into my mouth. It was salty and tangy and I loved it. I immediatley fell to my knees and gobbled his penis into my mouth, when he came I had to back off slightly or it all would have shot down my throat. I savoured his taste, nearly buckling his knees as I worked his semen over and around his glans before reluctantly swallowing my first load. I've been hooked ever since.
BTW at the time I was 12 I knew I was gay, my friend was just experimenting, our relationship worked well, he was a typical horny teenager who could never get enough, and when he didn't have a date who would put out he always had me.