On several occassions I had girls tell me they would not give me head, except cock worshiping, which is licking it, shaft and all, but not taking it in their mouths.
The usual explanation is that a large cock messes up their lips, and their mouth / lip corners get sored.
Vaginal sex was not an issue like that, , although most always start very cautious, never met a woman that would take me in and go fast from the start, which leads me to think, there are not that many big guys around.
Most women talk about large cocks, ( 8+ ) , but almost all of the girls I 've been with look so astonished, I have begun to think, women brag about liking size, but in reality, they ( most ) have not had one yet.
Usually I do not compell women to take me anally, I feel it is not fair to them. Only if they ask me