I agree. I LOVE seeing oral sex, start to finish, with the guy giving the blowjob swallowing the cum. I'm obsessed with doing that myself. Occasionally, I like to feed mine to another guy, but most times I'm happy just to take their load down my throat.
I imagine that the next training experience will be learning to take Dad's huge and long cock all the way down his throat, so that the son's nose is buried in Dad's pubes.