You’re only gay if you take it
So if a heterosexual man is raped by another man, that makes the victim Gay? IE, being Gay is solely about the sexual act, and therefore has absolutely nothing to do with love, companionship, sharing, etc?
And is the original question based purely on the idea of the sexual act, and nothing else? And does it also apply to Gay men, who would therefore need to consider the option of having sex with a woman or a male of another species? And of course vice-versa with Lesbians? And what about Bi-Sexual people? Can they just choose?
As a heterosexual man, my main priority would be to have some form of meaningful relationship with any partner, so another Human wins every time. At least there would be the possibility of negotiation, regarding the sexual act itself. As for sex with another animal, well, no, because that is way beyond my own sexual boundaries. Human Homosexuality is a Human sexuality, involving a Human relationship. With Bestiality, there is the issue of consent, which again, is something beyond my own sexual boundaries.
Somehow, I can’t imagine having a philosophical discussion about Ingmar Bergman’s ‘Silence’, or the fortunes of Liverpool FC, or Jade Goody, with a seal. Or a chimp. Or an otter.