I had sucked my friend's cock once before when we had a buzz on, and although he had let other guy's blow him, he said he was a little reluctant to let me do it. But after a short discussion, we both decided it was alright. He took his pants off and for 20 minutes or so I sucked his cock, stopping occaisionly to talk, then sucking away again. He didn't cum and that was alright because I really only wanted to suck him anyway.
A few weeks later I saw him at a bar we hung out at and we decided to go to his apartment which was close by. We were getting a buzz on again and I offered to suck his cock for awhile. He said he didn't know, but after I told him it was just kicks he agreed. His reluctance dissapeared immediately, it seemed, because in less than half a minute he was laying on the bed naked.
I positioned myself over him with one knee on the bed and my arms on either side of his hips. Leaning down I opened my mouth and took his cock in. His cock was soft as I sucked on it and after about 45 seconds he began to get hard. I bobbed up and down, his cock moving in and out of my mouth, and about 45 seconds later he got nice and hard. 'Good' I thought, and began pushing it in and out a little faster, sucking harder now. About 15 seconds later I felt the front of my mouth fill with what seemed like spit, a lot of spit. I realized he was cuming. He came more than anyone else had before but so fast that I was really taken by surprise. It was less than a 2 minute blowjob. Oh well!
PS
I've had 5 other cocks cum in my mouth, but never knew when they were going to cum.
This guy was the sixth and I didn't know when he was going to cum either. But after leaving his apartment I realized that I noticed he got real hard and then came. I never noticed anyone else getting hard like that before they came. I wasn't expecting him to cum so soon, but now that I think about it I should have known. I thought that if I ever suck him again, I'll look for him getting real hard and see if he cums. Then I'll know for sure. Also even though I've always expected a cock to squirt cum in my mouth and never have had it happen, what I feel is just a sudden presence of spit in the front of my mouth. I now know that they're cuming when I feel the spit. The amount of spit in my mouth when he came was by far much more than anyone else. I thought that if I ever get the chance to suck him again I should jump at it and see if I can tell when he's going to cum, and also see if he cums that much again. The chance never came so I guess that's life.
I wonder who will be next! Because of him I'll pay attention to how hard their cock is while I suck them, and hopefully I'll know when they are about to cum. I hope they cum like him, or maybe more.