I've achieved it once or twice in my younger and more flexible years. After a long evening or stroking I bent myself as much as I could and got to the point that I could lick the tip. That felt so good I kept working at it until I got the whole head in my mouth and I sucked and swirled my tongue around it until I burst right into my mouth.

Same with me, in my younger years I was able to a few times. Was quite a thrill, wouldn't mind being able to do it again...

in my teen years i could suck my head. im only about an inch away from my head no and it drives me crazy lol!!!! im sure if i worked on my stretching daily i could get my head. nothing like blowing on my face

No wet dream about it but I'd sure like to be able to do it...