hi ladies, it has come to my attention (and my boyfriends) that he has Phimosis (unable to pullback his foreskin because it is too tight. we have talked about this a few times but he is very sensitive when it comes to it and refuses to seek medical help (we are 19). but i find myself particularly worried about or scared to give him a blowjob because of how his penis is. i’ve never encountered it before and i’m scared that i’ll do it wrong or hurt him. is it the same as sucking a “normal” penis? or do i have to do things differently?

thanks in advance