>"every female is a potential fuck buddy"
As a guy, to this I would say both yes and no.
I don't think of all girls as "potential fuck buddies", even if they look good. To me, attraction is much more than just visual appearance.
On the other hand, most guys don't share my opinions about this. Nearly all of my friends would desperately say yes to any good looking girl who wants to have sex with them, the number of guys that I know who wouldn't, can be counted on one hand.