Unless finger games, just tongue and lips... Definitely it depends on how he does and your situation ...but I just wanna ask the average time...by the way if you can not have an orgasm during oral you may tell, ''I can not have orgasm during oralsex'' Personally, I have never seen before shorter than 7-8 min.maybe I'm talentness and is reciving oral boring for some girls?? if it is longer than 10 min.??
Honestly, it depends on the guy I think, for me it wouldn't do much after some Foreplay because it's too, gentle then or something like that, hard to explain. If it was started off that way I can and have had an orgasm. But if asked do I want it? We'll it can happen but I don't ask for it, even tho it does happen.
If I'm receptive, (which honestly is not always) and the person on the other end presses all my right buttons (which vary depending on mood) - about 10 mins. If nothing is happening by then it won't happen. No drama - no one "failed" - I just didn't orgasm that time. You just roll over and do something else.