Slapped Slut

I love sucking cock, a simple blow job, running my tongue under the foreskin, the feel of a cock sliding pleasantly in and out of my mouth is such a turn on but will I ever get used to gagging from a cock being deep throated? Obviously I need more training, is there a gag school to enroll in with lines of men, their cocks out willing to teach deep throat? My jaw was hurting as He forced his penis further and further into my mouth and I hoped with each stroke that it would be all of it, that I would feel a touch of his body on my nose and know that I had taken it all.