Well you can learn some technique to help you not gag so easy. A lot of lady's learn this skill through practice and patience. Its not a bad skill to have. Especially if you want to surprise and impress your partner.
get your toncles taken out ... they do nothing but breed bacteria anyway ... they serve no purpose for adults .. there only there to help you not choke on things when your a baby or small child .... once they are out you wont gag no batter how deep down your throat he goes .... PS this sounds strange but sometimes your toncels will grow back .. i think its like 25% of the time ... so some girls actually have to have them out twice ... its a few minuet painless snipp type procedure ... no drugs involved and totally painless.