Need Oral Sex Tips for Curved Penis

Dear Dr. Betty,
I have a new partner who has an significantly upward curved penis and I don't know how to perform oral sex.
He is a very attentive and pleasing partner. As we have only had sex a couple of times and are working through another issue, I am reluctant to talk to him about this ... yet although I agree that communication is key (and we do but I don't want to discuss this yet from concern that it may impact on another issue we are working through (ED!)).