I worked in an area with lots of Middle Eastern guys and even the straight ones would let me suck their big d****. A lot of these guys were big and hot even the much older ones.. They would pull out their cock. And I would always be impressed.. They only wanted oral, but that was OK with me... I swallowed a lot of tahini back then.
I am new to the bi scene. But I heard that many straight Arab men will top another man as long as it is from behind and they can avoid any pretense of romance or intimacy.