With so much drama in the L-O-T-R It's kinda hard bein Bilbo D-O-double-G But I, somehow, some way Keep comin up with funky hobbit **** like every single day May I, kick a little something for the Elves (yeah) and, make a few ends as (yeah!) I breeze, through Two in the mornin...
Sam did get married and have children, so he must have been bisexual.
Frodo was definitely gay though. He never had a girlfriend and he was always making eyes at Sam.
I think Bilbo and Gandalf were probably lovers too.