If you're gonna go with my VERY first experience with a guy it'd be when I was still just a kid. My grandma would send me across the street to her friend's house sometimes and she had a grandson my age. If we were there alone he'd "make me" suck his cock. All he really did was tell me to, possibly he threatened to beat me up or something I don't remember the details. All I really remember is I didn't like him or his cock much at all.

Next (and first REAL) experience. An older guy I met online through a personal ad on BulkMale.com. So as you can imagine he was a big chubby guy. He picked me up and took me to a hotel. We showered seperately and then I sucked him, he sucked me. He wanted a back rub and during it he fell asleep. By the time he woke up I wanted to go home so that was the end of that.