Of course it is a gay or bi thing to be aroused by cock

Gay = Men who seek other men for LOVE & RELATIONSHIPS
Bi = Men who can have LOVE & RELATIONSHIPS with Men OR women

Jacking off to porn with another guy, your buddy or some stranger doesn't change who you go home to or who you spend your life with. I jerk off to porn with dudes but I don't date them, I don't fuck them and I sure as fuck don't love them. It doesn't change you...if you make it known it only changes how dumb ass narrow minded people want to categorize you!

(I ignore trolls and stupid comments so dont expect me to reply to that bullshit if that's your intention)

Gay is defined as sexually or romantically attracted exclusively to people of one's own sex or gender (used especially of a man).
Bisexual is defined as sexually or romantically attracted to both men and women, or to more than one sex or gender.