Uhhh burped while giving head??

So this guy is my homie and we fake flirt all the time and he always asks for head and I always says like haha yeah but we never meant it and today we actually did. So I’m giving him head and he put his hand on my head and started moving It in and out but really deep. It triggered my gag reflex and made me burp. I feel really embarrassed... has this ever happened to anyone else? Is it bad ?