Gave my bf a blowjob for the first time (also my first time EVER giving one) and he stopped me after a couple seconds and told me it hurt. I asked why and he said because the spit was drying up and the friction was painful which I knew wasn’t true because his dick was soaking wet. I told him tell me the real reason but he was sticking with that answer. Any ideas on what I should do to improve? I think I might have been scraping him with my teeth a bit but it couldn’t have been that painful