is there a way to fit more in your mouth?

i’m tiny. so’s my mouth :( my boyfriend loves the way i give blowjobs but last time he mentioned that he’d like it if i could fit more in my mouth. i try, but i gag and it freaks me out.

is there a way i can train my throat to allow more of him in my mouth? or do you guys have any tips as to how i can make up for the section of his penis that i can’t fit??? i feel bad and want to be able to fulfill his request