My first time was with my friend Danny at 14. I used to go over to his house, which was on the other side of town about once a month. His parents were never home, I think in the 3 years he lived there I met his mom once. All other times they had a live-in nanny care for him and his sister. She was cool, she'd mostly let us do whatever we wanted and made us Jamaican food for dinner.
Anyway. Danny and I were in his parents bedroom because they had a waterbed and I thought it was fun to lay on it and watch TV. We started talking about sex, and at some point it came out that he was bullied before he moved to our town and was made to kiss his bully's cock. After I feigned disgust, he said it wasn't that bad, and I dared him to suck me, which he readily agreed to. I took down my pants and he was on me quickly. I don't think I lasted more than a minute (this is still an issue to this day!) and good little 14 year old Danny took my full load down his throat like a pro. Allegedly his first (I believe him). I was so skeeved out I couldn't suck him in return that day. Unfortunately, he moved away a few weeks later (his parents both had jobs that moved them a lot).
Maybe a year after he moved away he came back to my town and visited, and slept over at my house. I was SO eager to return the favor. We were locked in my parent's den watching TV late when I asked him flat out if I could suck him. He was sitting on the couch and agreed by taking off his shorts. I can still vividly remember the smell of him as I knelt between him and sucked my first dick. He was small, maybe the size of my adult thumb is now. I was easily able to get him all in of course, and had a lot of fun swirling my tongue around his cockhead. He lasted longer than I did, maybe 5 minutes, and then came the sweetest cum all over my tongue, which I swallowed down. To get me off, he jerked me off on to his face, which I loved because we had watched a porno with an Asian girl taking a facial and I found it so hot and he wanted to re-enact it for me.
He visted a couple more times, and we both took care of each other. His cock grew a bit, but not much.
Fast forward to today, some 35 years later, I am 100% a cocksucker. I don't get sucked. My wife has no idea, and I usually hunt for married guys to suck off in my hotel when I have to travel on business.