First of all, there is nothing wrong with being bisexual or gay! Heck, I’m bi! Yay, queers! That said, are you attracted to men? Then sure, you may be bi or gay. Not attracted to men, but just want a cock in your ass or mouth? Want the person to be putting the cock in your ass to be a woman only? You’re probably not bi or gay. Also, transsexuals (TS) are women who have cocks. Wanting to be fucked by a trans woman doesn’t make you less straight, just more kinky.
Referring to transsexual women as “shemales” just makes you an asshole, despite the fact you see that offensive term everywhere online.