​Is it gay if I can't watch porn if the male actor is an old fat guy?

Q: ​Is it gay if I can't watch porn if the male actor is an old fat guy? The male must be somewhat attractive in order for me to be arouse.

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A: People are usually attracted to certain body types.  Some are attracted to people who are young and athletic, while others are attracted to people who are older and overweight.  It really just comes down to personal preference.  Regardless, if a man is attracted to other men, then he is experiencing a homosexual attraction.  This doesn't necessarily mean he will identify as "gay;" that has to do with a whole host of factors, such as whether he's primarily attracted to men and whether he wants to identify with the larger gay community.  There are many straight people who will occasionally find someone of the same gender attractive, but still identify as straight because they are primarily attracted to those of the opposite gender and only wish to have sexual and romantic relationships with those of the opposite gender.