So my boyfriend really loves when I deepthroat him during oral sex but I have a really hard time not gagging. I have a very sensitive gag-reflex but I'm hoping it'll get easier if I keep practicing it. I can only really get him all the way down if he's semi-hard but once he's fully erect forget it. I really want to be able to do this for him as I love going down on him and I know he really enjoys it and it's something I wouldn't mind practicing more. Do you have any tips or tricks to help make it easier?