Relaxing is a must
how to relax? get a dildo and practice deepthroating, keep checking your gag reflex and then pull back
its when a cocksucker gets gagged, its almost involuntary for them to close the mouth
A cocksucker shoul always open tbeir mouth wider than a cock going down just barely sliding down it
then swallowing when it gets passed that curve at the end of ur mouth
The cock will be pulled down
on the outstroke purse your lios and let his cock drag out apply some suction
REMEMBER REGARDLESS YOUR A COCKSUCKERS LIPS ARE THE BUMPER OVER THE TEETH
Guys with more girth need to be conscious of his cock lining up right with the cocksuckers throat
lot of times its best for a feeder to make the eater hang their head propped with a pillow over the bed
and pull that cock out far enough for the eater to be able to get their breathe.
Gauge the flow before you start pumping cock in their throat
you may have to slow down ,shorter strokes and a few long ones in between
As I said if a suckers jaws are hurting or locking they may clamp down
give them a chance to relax, line it up, gauge their ability, slap their head if they nip
it may be getting good to them
and they are not keeping their bumbers(lips) over their teeth
let them breathe
I know sometimes a guy wants to hear em gag or choke but if you dont want your cock to look like its been in a war zone , you have to pull it out for them to catch a breathe
talk to them
tell them you like the way they are taking your cock blah blah blah