We have many of those guy (Muslims from Maghreb) in Paris France.
Those guys usually have a normal average cock (= white cock) , so very different from black bulls who have a really bigger tool (no doubt about that).
My husband explained me that these guys like to go directly to the asshole when they fuck a girl.
In their countries, it is a tradition to keep virgin vaginas (because of religion ?)
So they like to use anal fucking before the marriage.
I did not check Maghreb girl's assholes , so I cannot say if it is true or not !