Im 18f and when I perform oral sex and especially when deepthroating I tend to have a bit of gag reflex, because sometimes the other pushes his dick into my mouth way too quickly and too rough and I’m afraid that while having gag reflex I use a bit of teeth, specifically I’m afraid with a guy I’m seeing cuz he is very big and has a big girth so how to not use teeth while having gag reflex?