Because each man is different, its usually going to be a matter of 'experience' with your own man that will eventually tell you . Its his own unique reactions for the most part that will tell you when he is just about to lose control, and no one else's experience with another man can replace that IMO.
Although the following link has been provided numerous times, I'm sharing it again anyway for those who may not be aware of it:
Very easy to tell with my guy: his breathing becomes different and the head of his penis swells up significantly more than usual (even with an erection) and becomes very smooth and firm and the, ummm, hole in the end opens up -- it's not a slit but more of an actual hole. You can easily see it or feel it with your tongue. Also he hardly ever swears in regular life but he uses the F word a lot before and during cumming. So that's a clue. ;-)
Kristin,
Because each man is different, its usually going to be a matter of 'experience' with your own man that will eventually tell you . Its his own unique reactions for the most part that will tell you when he is just about to lose control, and no one else's experience with another man can replace that IMO.
Although the following link has been provided numerous times, I'm sharing it again anyway for those who may not be aware of it:
Going Down Further
http://members.tripod.com/midniterambler2002-ivil/goingdownfurther/index.html
It may not answer everything, but there are still good tips nevertheless. Hope the replies help. :)
C H A R A C T E R
Honey, if you don't trust him enough to tell you, then you shouldn't be doing it! If he says he'll tell you, then he'll tell you.
You're overanalyzing this to death, and making it into a much bigger "production" than it needs to be.